Photographing optical lens assembly, image capturing unit and electronic device

ABSTRACT

A photographing optical lens assembly includes seven lens elements, which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has negative refractive power. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element has an object-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof.

RELATED APPLICATIONS

This application claims priority to Taiwan Application 108147636, filedon Dec. 25, 2019, which is incorporated by reference herein in itsentirety.

BACKGROUND Technical Field

The present disclosure relates to a photographing optical lens assembly,an image capturing unit and an electronic device, more particularly to aphotographing optical lens assembly and an image capturing unitapplicable to an electronic device.

Description of Related Art

With the development of semiconductor manufacturing technology, theperformance of image sensors has improved, and the pixel size thereofhas been scaled down. Therefore, featuring high image quality becomesone of the indispensable features of an optical system nowadays.

Furthermore, due to the rapid changes in technology, electronic devicesequipped with optical systems are trending towards multi-functionalityfor various applications, and therefore the functionality requirementsfor the optical systems have been increasing. However, it is difficultfor a conventional optical system to obtain a balance among therequirements such as high image quality, low sensitivity, a properaperture size, miniaturization and a desirable field of view.

SUMMARY

According to one aspect of the present disclosure, a photographingoptical lens assembly includes seven lens elements. The seven lenselements are, in order from an object side to an image side along anoptical path, a first lens element, a second lens element, a third lenselement, a fourth lens element, a fifth lens element, a sixth lenselement and a seventh lens element.

The first lens element has negative refractive power. The third lenselement with positive refractive power has an image-side surface beingconvex in a paraxial region thereof. The fifth lens element has anobject-side surface being concave in a paraxial region thereof. Thesixth lens element has an object-side surface being convex in a paraxialregion thereof. The seventh lens element has an image-side surface beingconcave in a paraxial region thereof, and the image-side surface of theseventh lens element has at least one convex critical point in anoff-axis region thereof.

When a sum of axial distances between each of all adjacent lens elementsof the photographing optical lens assembly is ΣAT, an axial distancebetween the first lens element and the second lens element is T12, anaxial distance between the second lens element and the third lenselement is T23, an axial distance between the sixth lens element and theseventh lens element is T67, a maximum effective radius of anobject-side surface of the first lens element is Y11, a maximum imageheight of the photographing optical lens assembly is ImgH, and an axialdistance between the object-side surface of the first lens element andan image surface is TL, the following conditions are satisfied:1.0<ΣAT/(T12+T67)<3.75;Y11/ImgH<1.40;TL/ImgH<3.0; and1.50<T12/T23.

According to another aspect of the present disclosure, a photographingoptical lens assembly includes seven lens elements. The seven lenselements are, in order from an object side to an image side along anoptical path, a first lens element, a second lens element, a third lenselement, a fourth lens element, a fifth lens element, a sixth lenselement and a seventh lens element.

The first lens element has negative refractive power. The third lenselement with positive refractive power has an image-side surface beingconvex in a paraxial region thereof. The fifth lens element withnegative refractive power has an object-side surface being concave in aparaxial region thereof. The sixth lens element has positive refractivepower. The seventh lens element has an image-side surface being concavein a paraxial region thereof, and the image-side surface of the seventhlens element has at least one convex critical point in an off-axisregion thereof.

When a sum of axial distances between each of all adjacent lens elementsof the photographing optical lens assembly is ΣAT, an axial distancebetween the first lens element and the second lens element is T12, anaxial distance between the sixth lens element and the seventh lenselement is T67, a maximum effective radius of an object-side surface ofthe first lens element is Y11, a maximum image height of thephotographing optical lens assembly is ImgH, and an axial distancebetween the object-side surface of the first lens element and an imagesurface is TL, the following conditions are satisfied:1.0<ΣAT/(T12+T67)<1.80;Y11/ImgH<1.40; andTL/ImgH<3.0.

According to another aspect of the present disclosure, a photographingoptical lens assembly includes seven lens elements. The seven lenselements are, in order from an object side to an image side along anoptical path, a first lens element, a second lens element, a third lenselement, a fourth lens element, a fifth lens element, a sixth lenselement and a seventh lens element.

The first lens element has negative refractive power. The third lenselement with positive refractive power has an object-side surface beingconvex in a paraxial region thereof and an image-side surface beingconvex in a paraxial region thereof. The fifth lens element has negativerefractive power. The sixth lens element has positive refractive power.The seventh lens element has an image-side surface being concave in aparaxial region thereof, and the image-side surface of the seventh lenselement has at least one convex critical point in an off-axis regionthereof.

When a sum of axial distances between each of all adjacent lens elementsof the photographing optical lens assembly is ΣAT, an axial distancebetween the first lens element and the second lens element is T12, anaxial distance between the sixth lens element and the seventh lenselement is T67, a maximum effective radius of an object-side surface ofthe first lens element is Y11, a maximum image height of thephotographing optical lens assembly is ImgH, an axial distance betweenthe object-side surface of the first lens element and an image surfaceis TL, a curvature radius of an object-side surface of the sixth lenselement is R11, and a curvature radius of an image-side surface of thesixth lens element is R12, the following conditions are satisfied:1.0<ΣAT/(T12+T67)<1.80;Y11/ImgH<1.40;TL/ImgH<3.0; and(R11+R12)/(R11−R12)<0.

According to another aspect of the present disclosure, an imagecapturing unit includes one of the aforementioned photographing opticallens assemblies and an image sensor, wherein the image sensor isdisposed on the image surface of the photographing optical lensassembly.

According to another aspect of the present disclosure, an electronicdevice includes the aforementioned image capturing unit.

According to another aspect of the present disclosure, an electronicdevice includes at least two image capturing units facing the samedirection. The at least two image capturing units includes theaforementioned image capturing unit, and maximum fields of view of theat least two image capturing units differ by at least 30 degrees.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure can be better understood by reading the followingdetailed description of the embodiments, with reference made to theaccompanying drawings as follows:

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure;

FIG. 2 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 1stembodiment;

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure;

FIG. 4 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 2ndembodiment;

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure;

FIG. 6 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 3rdembodiment;

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure;

FIG. 8 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 4thembodiment;

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure;

FIG. 10 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 5thembodiment;

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure;

FIG. 12 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 6thembodiment;

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure;

FIG. 14 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 7thembodiment;

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure;

FIG. 16 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 8thembodiment;

FIG. 17 is a schematic view of an image capturing unit according to the9th embodiment of the present disclosure;

FIG. 18 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 9thembodiment;

FIG. 19 is a schematic view of an image capturing unit according to the10th embodiment of the present disclosure;

FIG. 20 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 10thembodiment;

FIG. 21 is a schematic view of an image capturing unit according to the11th embodiment of the present disclosure;

FIG. 22 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 11thembodiment;

FIG. 23 is a schematic view of an image capturing unit according to the12th embodiment of the present disclosure;

FIG. 24 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 12thembodiment;

FIG. 25 is a schematic view of an image capturing unit according to the13th embodiment of the present disclosure;

FIG. 26 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 13thembodiment;

FIG. 27 is a schematic view of an image capturing unit according to the14th embodiment of the present disclosure;

FIG. 28 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 14thembodiment;

FIG. 29 is a perspective view of an image capturing unit according tothe 15th embodiment of the present disclosure;

FIG. 30 is one perspective view of an electronic device according to the16th embodiment of the present disclosure;

FIG. 31 is another perspective view of the electronic device in FIG. 30;

FIG. 32 is a block diagram of the electronic device in FIG. 30;

FIG. 33 shows a schematic view of Y11 and Y72 and several inflectionpoints and critical points of the lens elements according to the 1stembodiment of the present disclosure;

FIG. 34 shows a schematic view of a configuration of a light-foldingelement in a photographing optical lens assembly according to oneembodiment of the present disclosure;

FIG. 35 shows a schematic view of another configuration of alight-folding element in a photographing optical lens assembly accordingto one embodiment of the present disclosure; and

FIG. 36 shows a schematic view of a configuration of two light-foldingelements in a photographing optical lens assembly according to oneembodiment of the present disclosure.

DETAILED DESCRIPTION

A photographing optical lens assembly includes seven lens elements. Theseven lens elements are, in order from an object side to an image sidealong an optical path, a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element.

The first lens element has negative refractive power. Therefore, it isfavorable for gathering light rays at wide field of view in thephotographing optical lens assembly. The first lens element can have anobject-side surface being concave in a paraxial region thereof andhaving at least one convex critical point in an off-axis region thereof.Therefore, the overall shape of the first lens element can be configuredin accordance with the dimensions restriction of a small camera module,which is favorable for preventing the shape of the first lens elementfrom being overly protruding, providing a wider view angle withsufficient incident light. Please refer to FIG. 33, which shows aschematic view of non-axial critical points C of the first lens element110 and the seventh lens element 170 according to the 1st embodiment ofthe present disclosure. The non-axial critical points of the first andseventh lens elements in FIG. 33 are only exemplary. Lens elements otherthan the first and seventh lens elements in the embodiments of thepresent disclosure may also have one or more non-axial critical points.

The third lens element has positive refractive power. Therefore, it isfavorable for light convergence while reducing the total track length ofthe photographing optical lens assembly so as to achieve compactness.The third lens element can have an object-side surface being convex in aparaxial region thereof and has an image-side surface being convex in aparaxial region thereof. Therefore, it is favorable for furtherenhancing light convergence of the third lens element.

The fifth lens element can have negative refractive power. Therefore, itis favorable for correcting aberrations. The fifth lens element can havean object-side surface being concave in a paraxial region thereof.Therefore, it is favorable for correcting spherical aberration andastigmatism so as to improve image quality. The fifth lens element canhave an image-side surface having at least one critical point in anoff-axis region thereof. Therefore, it is favorable for correctingoff-axis aberrations so as to increase relative illuminance on an imagesurface. Moreover, the image-side surface of the fifth lens element canhave at least two inflection points in the off-axis region thereof.Moreover, the image-side surface of the fifth lens element can have atleast two critical points in the off-axis region thereof. Please referto FIG. 33, which shows a schematic view of two non-axial inflectionpoints P of the image-side surface 152 of the fifth lens element 150according to the 1st embodiment of the present disclosure. The non-axialinflection points of the fifth lens element in FIG. 33 are onlyexemplary. Besides the image-side surface of the fifth lens element, theother lens surfaces in the embodiments of the present disclosure mayalso have one or more non-axial inflection points.

The sixth lens element can have positive refractive power. Therefore, itis favorable for reducing the total track length of the photographingoptical lens assembly. The sixth lens element can have an object-sidesurface being convex in a paraxial region thereof and having at leastone concave critical point in an off-axis region thereof. Therefore, itis favorable for correcting aberrations at the image periphery so as toincrease relative illuminance on the image surface.

The seventh lens element can have an object-side surface being convex ina paraxial region thereof, and the seventh lens element has animage-side surface being concave in a paraxial region thereof.Therefore, it is favorable for reducing the back focal length of thephotographing optical lens assembly. The object-side surface of theseventh lens element can have at least one concave critical point in anoff-axis region thereof, and the image-side surface of the seventh lenselement has at least one convex critical point in an off-axis regionthereof. Therefore, it is favorable for correcting the Petzval sum toflatten the image surface and correcting off-axis aberrations.

When a sum of axial distances between each of all adjacent lens elementsof the photographing optical lens assembly is ΣAT, an axial distancebetween the first lens element and the second lens element is T12, andan axial distance between the sixth lens element and the seventh lenselement is T67, the following condition is satisfied:1.0<ΣAT/(T12+T67)<3.75. Therefore, it is favorable for providing aproper space between the first and second elements so as to obtain awide angle configuration, and the arrangement of the axial distancebetween the sixth and seventh lens elements is favorable for reducingthe total track length of the photographing optical lens assembly.Moreover, the following condition can also be satisfied:1.0<ΣAT/(T12+T67)<3.0. Moreover, the following condition can also besatisfied: 1.0<ΣAT/(T12+T67)<2.0. Moreover, the following condition canalso be satisfied: 1.0<ΣAT/(T12+T67)<1.80. Moreover, the followingcondition can also be satisfied: 1.0<ΣAT/(T12+T67)<1.60.

When a maximum effective radius of the object-side surface of the firstlens element is Y11, and a maximum image height of the photographingoptical lens assembly (half of a diagonal length of an effectivephotosensitive area of an image sensor) is ImgH, the following conditionis satisfied: Y11/ImgH<1.40. Therefore, it is favorable for furthercontrolling the radial dimension of the first lens element so as toreduce the size of the photographing optical lens assembly. Moreover,the following condition can also be satisfied: 0.50<Y11/ImgH<1.25.Moreover, the following condition can also be satisfied:0.60<Y11/ImgH<1.05. Please refer to FIG. 33, which shows a schematicview of Y11 according to the 1st embodiment of the present disclosure.

When an axial distance between the object-side surface of the first lenselement and the image surface is TL, and the maximum image height of thephotographing optical lens assembly is ImgH, the following condition issatisfied: TL/ImgH<3.0. Therefore, it is favorable for balancing amongthe field of view, compactness and manufacturing feasibility of thephotographing optical lens assembly. Moreover, the following conditioncan also be satisfied: 0.80<TL/ImgH<2.40.

When the axial distance between the first lens element and the secondlens element is T12, and an axial distance between the second lenselement and the third lens element is T23, the following condition canbe satisfied: 1.50<T12/T23. Therefore, the arrangement of the secondlens element is favorable for providing sufficient space around thefirst lens element so as to obtain a wide field of view configuration.Moreover, the following condition can also be satisfied:2.5<T12/T23<20.0. Moreover, the following condition can also besatisfied: 3.0<T12/T23<15.0.

When a curvature radius of the object-side surface of the sixth lenselement is R11, and a curvature radius of an image-side surface of thesixth lens element is R12, the following condition can be satisfied:(R11+R12)/(R11−R12)<0. Therefore, the surface shape of the sixth lenselement is favorable for having a short back focal length and largeimage height in the photographing optical lens assembly. Moreover, thefollowing condition can also be satisfied: −2.0<(R11+R12)/(R11−R12)<0.

When a curvature radius of the object-side surface of the first lenselement is R1, and a curvature radius of an image-side surface of thefirst lens element is R2, the following condition can be satisfied:−1.50<(R1+R2)/(R1−R2)<0.75. Therefore, it is favorable for the overallshape of the first lens element to be configured in accordance with thedimensions restriction of a small camera module so as to prevent theshape of the lens element from being overly protruding while achieving awide view angle with sufficient incident light.

When a focal length of the first lens element is f1, a focal length ofthe second lens element is f2, a focal length of the third lens elementis f3, a focal length of the fourth lens element is f4, a focal lengthof the fifth lens element is f5, and a focal length of the sixth lenselement is f6, the following conditions can be satisfied: |f1/f2|<1.0;|f3/f2|<1.0; |f4/f2|<1.0; |f5/f2|<1.0; and |f6/f2|<1.0. Therefore, therefractive power of the second lens element is favorable for retrievinglight in the photographing optical lens assembly while avoidingexcessive stray light from overly curved lens surfaces.

When an axial distance between an object-side surface of the second lenselement and the image-side surface of the sixth lens element is Dr3r12,the axial distance between the second lens element and the third lenselement is T23, an axial distance between the third lens element and thefourth lens element is T34, an axial distance between the fourth lenselement and the fifth lens element is T45, and an axial distance betweenthe fifth lens element and the sixth lens element is T56, the followingcondition can be satisfied: 4.0<Dr3r12/(T23+T34+T45+T56). Therefore, itis favorable for preventing the distances between adjacent lens elementsfrom being overly large or small so as to improve space utilization.

When an f-number of the photographing optical lens assembly is Fno, thefollowing condition can be satisfied: 1.20<Fno<2.60. Therefore, it isfavorable for providing sufficient incident light so as to improve imageresolution.

When a maximum field of view of the photographing optical lens assemblyis FOV, the following condition can be satisfied: 100 [deg.]<FOV<160[deg.]. Therefore, it is favorable for achieving a wide view angle.

When an Abbe number of the second lens element is V2, an Abbe number ofthe fifth lens element is V5, and an Abbe number of the seventh lenselement is V7, the following condition can be satisfied: 30<V2+V5+V7<85.Therefore, it is favorable for correcting chromatic aberration.

When a maximum value among refractive indices of all lens elements ofthe photographing optical lens assembly is Nmax, the following conditioncan be satisfied: Nmax≤1.73. Therefore, a proper selection of materialsof the lens elements is favorable for controlling the refractive powerof each lens element so as to prevent excessive correction and thusreduce aberrations.

When the Abbe number of the seventh lens element is V7, the followingcondition can be satisfied: V7<30. Therefore, it is favorable forcorrecting chromatic aberration at the image side of the photographingoptical lens assembly.

When a maximum effective radius of the image-side surface of the seventhlens element is Y72, and a focal length of the photographing opticallens assembly is f, the following condition can be satisfied:1.0<Y72/f<2.0. Therefore, it is favorable for enlarging the opticallyeffective area of the seventh lens element so as to further increaseilluminance on the peripheral region of the image surface. Please referto FIG. 33, which shows a schematic view of Y72 according to the 1stembodiment of the present disclosure.

When a central thickness of the second lens element is CT2, and an axialdistance between the image-side surface of the seventh lens element andthe image surface is BL, the following condition can be satisfied:0.50<CT2/BL<1.50. Therefore, it is favorable for further reducing theback focal length so as to further reduce the size of the photographingoptical lens assembly.

When an Abbe number of the first lens element is V1, the Abbe number ofthe second lens element is V2, an Abbe number of the third lens elementis V3, an Abbe number of the fourth lens element is V4, the Abbe numberof the fifth lens element is V5, an Abbe number of the sixth lenselement is V6, the Abbe number of the seventh lens element is V7, anAbbe number of the i-th lens element is Vi, a refractive index of thefirst lens element is N1, a refractive index of the second lens elementis N2, a refractive index of the third lens element is N3, a refractiveindex of the fourth lens element is N4, a refractive index of the fifthlens element is N5, a refractive index of the sixth lens element is N6,a refractive index of the seventh lens element is N7, and a refractiveindex of the i-th lens element is Ni, at least two lens elements of thephotographing optical lens assembly can satisfy the following condition:5.0<Vi/Ni<12.0, wherein i=1, 2, 3, 4, 5, 6 or 7. Therefore, it isfavorable for enhancing chromatic aberration corrections. Moreover, atleast three lens elements of the photographing optical lens assembly canalso satisfy the following condition: 5.0<Vi/Ni<12.0, wherein i=1, 2, 3,4, 5, 6 or 7.

When the maximum effective radius of the image-side surface of theseventh lens element is Y72, and the axial distance between theimage-side surface of the seventh lens element and the image surface isBL, the following condition can be satisfied: 1.5<Y72/BL<5.0. Therefore,it is favorable for further reducing the back focal length so as toreduce the total track length of the photographing optical lensassembly.

When the maximum effective radius of the object-side surface of thefirst lens element is Y11, and the maximum effective radius of theimage-side surface of the seventh lens element is Y72, the followingcondition can be satisfied: 0.50<Y11/Y72<1.30. Therefore, it isfavorable for controlling the dimensions of the first lens element so asto achieve a compact photographing optical lens assembly.

When the focal length of the sixth lens element is f6, and a focallength of the seventh lens element is f7, the following condition can besatisfied: f6/f7<0.30. Therefore, it is favorable for balancing therefractive power at the image side of the photographing optical lensassembly so as to prevent aberration over-corrections.

According to the present disclosure, the aforementioned features andconditions can be utilized in numerous combinations so as to achievecorresponding effects.

According to the present disclosure, the lens elements of thephotographing optical lens assembly can be made of either glass orplastic material. When the lens elements are made of glass material, therefractive power distribution of the photographing optical lens assemblymay be more flexible, and the influence on imaging caused by externalenvironment temperature change may be reduced. The glass lens elementcan either be made by grinding or molding. When the lens elements aremade of plastic material, the manufacturing costs can be effectivelyreduced. Furthermore, surfaces of each lens element can be arranged tobe spherical or aspheric, wherein the former reduces manufacturingdifficulty, and the latter allows more control variables for eliminatingaberrations thereof, the required number of the lens elements can bereduced, and the total track length of the photographing optical lensassembly can be effectively shortened. Furthermore, the asphericsurfaces may be formed by plastic injection molding or glass molding.

According to the present disclosure, when a lens surface is aspheric, itmeans that the lens surface has an aspheric shape throughout itsoptically effective area, or a portion(s) thereof.

According to the present disclosure, one or more of the lens elements'material may optionally include an additive which alters the lenselements' transmittance in a specific range of wavelength for areduction in unwanted stray light or colour deviation. For example, theadditive may optionally filter out light in the wavelength range of 600nm to 800 nm to reduce excessive red light and/or near infrared light;or may optionally filter out light in the wavelength range of 350 nm to450 nm to reduce excessive blue light and/or near ultraviolet light frominterfering the final image. The additive may be homogeneously mixedwith a plastic material to be used in manufacturing a mixed-materiallens element by injection molding.

According to the present disclosure, each of an object-side surface andan image-side surface has a paraxial region and an off-axis region. Theparaxial region refers to the region of the surface where light raystravel close to the optical axis, and the off-axis region refers to theregion of the surface away from the paraxial region. Particularly,unless otherwise stated, when the lens element has a convex surface, itindicates that the surface is convex in the paraxial region thereof;when the lens element has a concave surface, it indicates that thesurface is concave in the paraxial region thereof. Moreover, when aregion of refractive power or focus of a lens element is not defined, itindicates that the region of refractive power or focus of the lenselement is in the paraxial region thereof.

According to the present disclosure, an inflection point is a point onthe surface of the lens element at which the surface changes fromconcave to convex, or vice versa. A critical point is a non-axial pointof the lens surface where its tangent is perpendicular to the opticalaxis.

According to the present disclosure, the image surface of thephotographing optical lens assembly, based on the corresponding imagesensor, can be flat or curved, especially a curved surface being concavefacing towards the object side of the photographing optical lensassembly.

According to the present disclosure, an image correction unit, such as afield flattener, can be optionally disposed between the lens elementclosest to the image side of the photographing optical lens assembly andthe image surface on the imaging optical path for correction ofaberrations such as field curvature. The optical properties of the imagecorrection unit, such as curvature, thickness, index of refraction,position and surface shape (convex or concave surface with spherical,aspheric, diffractive or Fresnel types), can be adjusted according tothe design of the image capturing unit. In general, a preferable imagecorrection unit is, for example, a thin transparent element having aconcave object-side surface and a planar image-side surface, and thethin transparent element is disposed near the image surface.

According to the present disclosure, at least one light-folding element,such as a prism or a mirror, can be optionally disposed between animaged object and the image surface on the imaging optical path, suchthat the photographing optical lens assembly can be more flexible inspace arrangement, and therefore the dimensions of an electronic deviceis not restricted by the total track length of the photographing opticallens assembly. Specifically, please refer to FIG. 34 and FIG. 35. FIG.34 shows a schematic view of a configuration of a light-folding elementin a photographing optical lens assembly according to one embodiment ofthe present disclosure, and FIG. 35 shows a schematic view of anotherconfiguration of a light-folding element in a photographing optical lensassembly according to one embodiment of the present disclosure. In FIG.34 and FIG. 35, the photographing optical lens assembly can have, inorder from an imaged object (not shown in figure) to an image surface IMalong an optical path, a first optical axis OA1, a light-folding elementLF and a second optical axis OA2. The light-folding element LF can bedisposed between the imaged object and a lens group LG of thephotographing optical lens assembly as shown in FIG. 34 or disposedbetween a lens group LG of the photographing optical lens assembly andthe image surface IM as shown in FIG. 35. Furthermore, please refer toFIG. 36, which shows a schematic view of a configuration of twolight-folding elements in a photographing optical lens assemblyaccording to one embodiment of the present disclosure. In FIG. 36, thephotographing optical lens assembly can have, in order from an imagedobject (not shown in figure) to an image surface IM along an opticalpath, a first optical axis OA1, a first light-folding element LF1, asecond optical axis OA2, a second light-folding element LF2 and a thirdoptical axis OA3. The first light-folding element LF1 is disposedbetween the imaged object and a lens group LG of the photographingoptical lens assembly, and the second light-folding element LF2 isdisposed between the lens group LG of the photographing optical lensassembly and the image surface IM. The photographing optical lensassembly can be optionally provided with three or more light-foldingelements, and the present disclosure is not limited to the type, amountand position of the light-folding elements of the embodiments disclosedin the aforementioned figures.

According to the present disclosure, the photographing optical lensassembly can include at least one stop, such as an aperture stop, aglare stop or a field stop. Said glare stop or said field stop is setfor eliminating the stray light and thereby improving image qualitythereof.

According to the present disclosure, an aperture stop can be configuredas a front stop or a middle stop. A front stop disposed between animaged object and the first lens element can provide a longer distancebetween an exit pupil of the photographing optical lens assembly and theimage surface to produce a telecentric effect, and thereby improves theimage-sensing efficiency of an image sensor (for example, CCD or CMOS).A middle stop disposed between the first lens element and the imagesurface is favorable for enlarging the viewing angle of thephotographing optical lens assembly and thereby provides a wider fieldof view for the same.

According to the present disclosure, the photographing optical lensassembly can include an aperture control unit. The aperture control unitmay be a mechanical component or a light modulator, which can controlthe size and shape of the aperture through electricity or electricalsignals. The mechanical component can include a movable member, such asa blade assembly or a light shielding sheet. The light modulator caninclude a shielding element, such as a filter, an electrochromicmaterial or a liquid-crystal layer. The aperture control unit controlsthe amount of incident light or exposure time to enhance the capabilityof image quality adjustment. In addition, the aperture control unit canbe the aperture stop of the present disclosure, which changes thef-number to obtain different image effects, such as the depth of fieldor lens speed.

According to the above description of the present disclosure, thefollowing specific embodiments are provided for further explanation.

1st Embodiment

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure. FIG. 2 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 1stembodiment. In FIG. 1, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 195. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 110, a second lenselement 120, an aperture stop 100, a third lens element 130, a stop 101,a fourth lens element 140, a fifth lens element 150, a sixth lenselement 160, a seventh lens element 170, an IR-cut filter 180 and animage surface 190. The photographing optical lens assembly includesseven lens elements (110, 120, 130, 140, 150, 160 and 170) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 110 with negative refractive power has anobject-side surface 111 being concave in a paraxial region thereof andan image-side surface 112 being concave in a paraxial region thereof.The first lens element 110 is made of plastic material and has theobject-side surface 111 and the image-side surface 112 being bothaspheric. The object-side surface 111 of the first lens element 110 hasat least one convex critical point in an off-axis region thereof.

The second lens element 120 with negative refractive power has anobject-side surface 121 being convex in a paraxial region thereof and animage-side surface 122 being concave in a paraxial region thereof. Thesecond lens element 120 is made of plastic material and has theobject-side surface 121 and the image-side surface 122 being bothaspheric.

The third lens element 130 with positive refractive power has anobject-side surface 131 being convex in a paraxial region thereof and animage-side surface 132 being convex in a paraxial region thereof. Thethird lens element 130 is made of plastic material and has theobject-side surface 131 and the image-side surface 132 being bothaspheric.

The fourth lens element 140 with positive refractive power has anobject-side surface 141 being convex in a paraxial region thereof and animage-side surface 142 being convex in a paraxial region thereof. Thefourth lens element 140 is made of plastic material and has theobject-side surface 141 and the image-side surface 142 being bothaspheric.

The fifth lens element 150 with negative refractive power has anobject-side surface 151 being concave in a paraxial region thereof andan image-side surface 152 being concave in a paraxial region thereof.The fifth lens element 150 is made of plastic material and has theobject-side surface 151 and the image-side surface 152 being bothaspheric. The image-side surface 152 of the fifth lens element 150 hasat least two inflection points in an off-axis region thereof.

The sixth lens element 160 with positive refractive power has anobject-side surface 161 being convex in a paraxial region thereof and animage-side surface 162 being convex in a paraxial region thereof. Thesixth lens element 160 is made of plastic material and has theobject-side surface 161 and the image-side surface 162 being bothaspheric.

The seventh lens element 170 with negative refractive power has anobject-side surface 171 being concave in a paraxial region thereof andan image-side surface 172 being concave in a paraxial region thereof.The seventh lens element 170 is made of plastic material and has theobject-side surface 171 and the image-side surface 172 being bothaspheric. The image-side surface 172 of the seventh lens element 170 hasat least one convex critical point in an off-axis region thereof.

The IR-cut filter 180 is made of glass material and located between theseventh lens element 170 and the image surface 190, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 195 is disposed on or near the image surface 190 of thephotographing optical lens assembly.

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${{X(Y)} = {{\left( {Y^{2}/R} \right)/\left( {1 + {sqr{t\left( {1 - {\left( {1 + k} \right) \times \left( {Y/R} \right)^{2}}} \right)}}} \right)} + {\sum\limits_{i}{({Ai}) \times \left( Y^{i} \right)}}}},$where,

X is a displacement in parallel with an optical axis from an axialvertex on the aspheric surface to a point at a distance of Y from theoptical axis on the aspheric surface;

Y is a vertical distance from the point on the aspheric surface to theoptical axis;

R is the curvature radius;

k is the conic coefficient; and

Ai is the i-th aspheric coefficient, and in the embodiments, i may be,but is not limited to, 4, 6, 8, 10, 12, 14, 16, 18 and 20.

In the photographing optical lens assembly of the image capturing unitaccording to the 1st embodiment, when a focal length of thephotographing optical lens assembly is f, an f-number of thephotographing optical lens assembly is Fno, and half of a maximum fieldof view of the photographing optical lens assembly is HFOV, theseparameters have the following values: f=1.76 millimeters (mm), Fno=2.45,HFOV=68.9 degrees (deg.).

When the maximum field of view of the photographing optical lensassembly is FOV, the following condition is satisfied: FOV=137.8 [deg.].

When a maximum value among refractive indices of all lens elements ofthe photographing optical lens assembly is Nmax, the following conditionis satisfied: Nmax=1.686. In this embodiment, among the first throughseventh lens elements (110-170), a refractive index of the seventh lenselement 170 is larger than refractive indices of the other lenselements, and Nmax is equal to the refractive index of the seventh lenselement 170.

When an Abbe number of the first lens element 110 is V1, the refractiveindex of the first lens element 110 is N1, an Abbe number of the secondlens element 120 is V2, the refractive index of the second lens element120 is N2, an Abbe number of the third lens element 130 is V3, therefractive index of the third lens element 130 is N3, an Abbe number ofthe fourth lens element 140 is V4, the refractive index of the fourthlens element 140 is N4, an Abbe number of the fifth lens element 150 isV5, the refractive index of the fifth lens element 150 is N5, an Abbenumber of the sixth lens element 160 is V6, the refractive index of thesixth lens element 160 is N6, an Abbe number of the seventh lens element170 is V7, and the refractive index of the seventh lens element 170 isN7, the following conditions are satisfied: V1/N1=36.30; V2/N2=16.09;V3/N3=25.95; V4/N4=36.26; V5/N5=13.21; V6/N6=36.26; and V7/N7=10.90.

When the Abbe number of the second lens element 120 is V2, the Abbenumber of the fifth lens element 150 is V5, and the Abbe number of theseventh lens element 170 is V7, the following condition is satisfied:V2+V5+V7=66.14.

When the Abbe number of the seventh lens element 170 is V7, thefollowing condition is satisfied: V7=18.38.

When an axial distance between the first lens element 110 and the secondlens element 120 is T12, and an axial distance between the second lenselement 120 and the third lens element 130 is T23, the followingcondition is satisfied: T12/T23=6.12. In this embodiment, an axialdistance between two adjacent lens elements is a distance in a paraxialregion between two adjacent lens surfaces of the two adjacent lenselements.

When a central thickness of the second lens element 120 is CT2, and anaxial distance between the image-side surface 172 of the seventh lenselement 170 and the image surface 190 is BL, the following condition issatisfied: CT2/BL=0.73.

When an axial distance between the object-side surface 121 of the secondlens element 120 and the image-side surface 162 of the sixth lenselement 160 is Dr3r12, the axial distance between the second lenselement 120 and the third lens element 130 is T23, an axial distancebetween the third lens element 130 and the fourth lens element 140 isT34, an axial distance between the fourth lens element 140 and the fifthlens element 150 is T45, and an axial distance between the fifth lenselement 150 and the sixth lens element 160 is T56, the followingcondition is satisfied: Dr3r12/(T23+T34+T45+T56)=12.04.

When a sum of axial distances between each of all adjacent lens elementsof the photographing optical lens assembly is ΣAT, the axial distancebetween the first lens element 110 and the second lens element 120 isT12, and an axial distance between the sixth lens element 160 and theseventh lens element 170 is T67, the following condition is satisfied:ΣAT/(T12+T67)=1.23. In this embodiment, ΣAT is a sum of the axialdistances between the first lens element 110 and the second lens element120, the second lens element 120 and the third lens element 130, thethird lens element 130 and the fourth lens element 140, the fourth lenselement 140 and the fifth lens element 150, the fifth lens element 150and the sixth lens element 160, and the sixth lens element 160 and theseventh lens element 170.

When an axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, and a maximum imageheight of the photographing optical lens assembly is ImgH, the followingcondition is satisfied: TL/ImgH=2.28.

When a maximum effective radius of the object-side surface 111 of thefirst lens element 110 is Y11, the following condition is satisfied:Y11=2.99 [mm].

When a maximum effective radius of the image-side surface 172 of theseventh lens element 170 is Y72, the following condition is satisfied:Y72=2.47 [mm].

When the maximum effective radius of the object-side surface 111 of thefirst lens element 110 is Y11, and the maximum effective radius of theimage-side surface 172 of the seventh lens element 170 is Y72, thefollowing condition is satisfied: Y11/Y72=1.21.

When the maximum effective radius of the object-side surface 111 of thefirst lens element 110 is Y11, and the maximum image height of thephotographing optical lens assembly is ImgH, the following condition issatisfied: Y11/ImgH=0.88.

When the maximum effective radius of the image-side surface 172 of theseventh lens element 170 is Y72, and the focal length of thephotographing optical lens assembly is f, the following condition issatisfied: Y72/f=1.41.

When the maximum effective radius of the image-side surface 172 of theseventh lens element 170 is Y72, and the axial distance between theimage-side surface 172 of the seventh lens element 170 and the imagesurface 190 is BL, the following condition is satisfied: Y72/BL=2.79.

When a curvature radius of the object-side surface 111 of the first lenselement 110 is R1, and a curvature radius of the image-side surface 112of the first lens element 110 is R2, the following condition issatisfied: (R1+R2)/(R1−R2)=0.13.

When a curvature radius of the object-side surface 161 of the sixth lenselement 160 is R11, and a curvature radius of the image-side surface 162of the sixth lens element 160 is R12, the following condition issatisfied: (R11+R12)/(R11−R12)=−0.49.

When a focal length of the first lens element 110 is f1, a focal lengthof the second lens element 120 is f2, a focal length of the third lenselement 130 is f3, a focal length of the fourth lens element 140 is f4,a focal length of the fifth lens element 150 is f5, a focal length ofthe sixth lens element 160 is f6, and a focal length of the seventh lenselement 170 is f7, the following conditions are satisfied: |f1/f2|=0.04;|f3/f2|=0.05; |f4/f2|=0.05; |f5/f2|=0.04; |f6/f2|=0.04; and f6/f7=−0.52.

The detailed optical data of the 1st embodiment are shown in Table 1 andthe aspheric surface data are shown in Table 2 below.

TABLE 1 1st Embodiment f = 1.76 mm, Fno = 2.45, HFOV = 68.9 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 −3.182 (ASP) 0.714 Plastic 1.545 56.1 −2.43 22.447 (ASP) 0.912 3 Lens 2 4.581 (ASP) 0.650 Plastic 1.614 26.0 −58.92 43.847 (ASP) 0.190 5 Ape. Stop Plano −0.041 6 Lens 3 3.677 (ASP) 0.966Plastic 1.559 40.4 2.92 7 −2.662 (ASP) −0.020 8 Stop Plano 0.055 9 Lens4 4.058 (ASP) 0.754 Plastic 1.544 56.0 3.14 10 −2.763 (ASP) 0.070 11Lens 5 −3.316 (ASP) 0.400 Plastic 1.650 21.8 −2.51 12 3.348 (ASP) 0.08513 Lens 6 1.764 (ASP) 0.971 Plastic 1.544 56.0 2.54 14 −5.149 (ASP)0.586 15 Lens 7 −100.000 (ASP) 0.551 Plastic 1.686 18.4 −4.89 16 3.481(ASP) 0.300 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18 Plano0.375 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 101 (Surface 8) is 0.875 mm.

TABLE 2 Aspheric Coefficients Surface # 1 2 3 4 6 k = −4.1621E+01−4.4779E−01  0.0000E+00 −3.9997E+00  0.0000E+00 A4 =  5.7789E−02 2.6379E−01 −1.1231E−02 1.1498E−01 7.4412E−02 A6 = −2.0067E−02−3.0518E−01 −4.5684E−02 9.1180E−02 1.7819E−01 A8 =  5.0000E−03 6.0794E−01  1.0755E−01 2.7585E−02 −4.6635E−01  A10 = −8.2572E−04−7.9443E−01 −1.8282E−01 −4.6498E−01  7.9560E−01 A12 =  8.5396E−05 6.1346E−01  1.0733E−01 4.7058E−01 −6.8566E−01  A14 = −4.9854E−06−2.4815E−01 −1.5030E−02 — — A16 =  1.2705E−07  3.9504E−02 −2.6932E−03 —— Surface # 7 9 10 11 12 k =  0.0000E+00  0.0000E+00 −8.3452E+011.9974E+00 −1.0000E+00 A4 = −1.2370E−01 −1.1855E−01  1.0715E−016.7481E−01  4.8775E−03 A6 =  3.6063E−01  4.2359E−01 −1.3821E+00−3.3316E+00  −6.4100E−01 A8 = −2.1675E−01 −6.6673E−01  2.3691E+008.3417E+00  1.7051E+00 A10 = −6.6711E−01  7.1540E−01 −2.1402E+00−1.5963E+01  −2.3980E+00 A12 =  1.8309E+00 −5.0904E−01  1.0812E+002.2661E+01  2.0071E+00 A14 = −1.7884E+00  2.1927E−01 −2.3623E−01−2.2420E+01  −9.9439E−01 A16 =  6.4408E−01 −4.4194E−02  5.5150E−041.4464E+01  2.7046E−01 A18 = — — — −5.4185E+00  −3.1233E−02 A20 = — — —8.8684E−01 — Surface # 13 14 15 16 k = −5.3482E+00 0.0000E+00 0.0000E+00  0.0000E+00 A4 = −1.5805E−01 −5.5203E−03  −1.0509E−01−4.6868E−02 A6 =  3.8156E−02 1.6616E−02  5.9571E−02 −5.7904E−02 A8 = 9.2462E−03 −1.7020E−01  −2.5075E−01  5.4787E−02 A10 =  2.5540E−012.5703E−01  3.3166E−01 −2.3288E−02 A12 = −5.4646E−01 −1.6074E−01 −2.2151E−01  5.6943E−03 A14 =  4.8809E−01 3.7163E−02  8.8544E−02−8.3973E−04 A16 = −2.2663E−01 4.8231E−03 −2.3049E−02  7.2273E−05 A18 = 5.4071E−02 −3.7349E−03   3.7582E−03 −3.2220E−06 A20 = −5.2621E−034.8360E−04 −2.8442E−04  5.3878E−08

In Table 1, the curvature radius, the thickness and the focal length areshown in millimeters (mm). Surface numbers 0-19 represent the surfacessequentially arranged from the object side to the image side along theoptical axis. In Table 2, k represents the conic coefficient of theequation of the aspheric surface profiles. A4-20 represent the asphericcoefficients ranging from the 4th order to the 20th order. The tablespresented below for each embodiment are the corresponding schematicparameter and aberration curves, and the definitions of the tables arethe same as Table 1 and Table 2 of the 1st embodiment. Therefore, anexplanation in this regard will not be provided again.

2nd Embodiment

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure. FIG. 4 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 2ndembodiment. In FIG. 3, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 295. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 210, a second lenselement 220, an aperture stop 200, a third lens element 230, a stop 201,a fourth lens element 240, a fifth lens element 250, a sixth lenselement 260, a seventh lens element 270, an IR-cut filter 280 and animage surface 290. The photographing optical lens assembly includesseven lens elements (210, 220, 230, 240, 250, 260 and 270) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 210 with negative refractive power has anobject-side surface 211 being concave in a paraxial region thereof andan image-side surface 212 being concave in a paraxial region thereof.The first lens element 210 is made of plastic material and has theobject-side surface 211 and the image-side surface 212 being bothaspheric. The object-side surface 211 of the first lens element 210 hasat least one convex critical point in an off-axis region thereof.

The second lens element 220 with positive refractive power has anobject-side surface 221 being convex in a paraxial region thereof and animage-side surface 222 being concave in a paraxial region thereof. Thesecond lens element 220 is made of plastic material and has theobject-side surface 221 and the image-side surface 222 being bothaspheric.

The third lens element 230 with positive refractive power has anobject-side surface 231 being convex in a paraxial region thereof and animage-side surface 232 being convex in a paraxial region thereof. Thethird lens element 230 is made of plastic material and has theobject-side surface 231 and the image-side surface 232 being bothaspheric.

The fourth lens element 240 with positive refractive power has anobject-side surface 241 being convex in a paraxial region thereof and animage-side surface 242 being convex in a paraxial region thereof. Thefourth lens element 240 is made of plastic material and has theobject-side surface 241 and the image-side surface 242 being bothaspheric.

The fifth lens element 250 with negative refractive power has anobject-side surface 251 being concave in a paraxial region thereof andan image-side surface 252 being convex in a paraxial region thereof. Thefifth lens element 250 is made of plastic material and has theobject-side surface 251 and the image-side surface 252 being bothaspheric. The image-side surface 252 of the fifth lens element 250 hasat least one two inflection points in an off-axis region thereof.

The sixth lens element 260 with positive refractive power has anobject-side surface 261 being convex in a paraxial region thereof and animage-side surface 262 being convex in a paraxial region thereof. Thesixth lens element 260 is made of plastic material and has theobject-side surface 261 and the image-side surface 262 being bothaspheric. The object-side surface 261 of the sixth lens element 260 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 270 with negative refractive power has anobject-side surface 271 being convex in a paraxial region thereof and animage-side surface 272 being concave in a paraxial region thereof. Theseventh lens element 270 is made of plastic material and has theobject-side surface 271 and the image-side surface 272 being bothaspheric. The object-side surface 271 of the seventh lens element 270has at least one concave critical point in an off-axis region thereof.The image-side surface 272 of the seventh lens element 270 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 280 is made of glass material and located between theseventh lens element 270 and the image surface 290, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 295 is disposed on or near the image surface 290 of thephotographing optical lens assembly.

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 1.46 mm, Fno = 2.21, HFOV = 71.0 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 −4.213 (ASP) 0.852 Plastic 1.544 56.0 −2.02 21.594 (ASP) 0.868 3 Lens 2 4.820 (ASP) 0.458 Plastic 1.621 23.6 14.75 49.803 (ASP) 0.266 5 Ape. Stop Plano −0.042 6 Lens 3 4.048 (ASP) 0.426Plastic 1.591 27.2 5.41 7 −14.666 (ASP) 0.028 8 Stop Plano 0.007 9 Lens4 3.402 (ASP) 0.716 Plastic 1.544 56.0 2.93 10 −2.780 (ASP) 0.145 11Lens 5 −3.019 (ASP) 0.300 Plastic 1.698 16.3 −4.47 12 −98.660 (ASP)0.076 13 Lens 6 1.974 (ASP) 1.137 Plastic 1.544 56.0 2.30 14 −2.716(ASP) 0.363 15 Lens 7 24.868 (ASP) 0.567 Plastic 1.705 14.0 −4.50 162.785 (ASP) 0.300 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18Plano 0.366 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 201 (Surface 8) is 0.760 mm.An effective radius of the image-side surface 272 (Surface 16) is 2.550mm.

TABLE 4 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.0000E+01−8.7504E−01  0.0000E+00 2.3026E+01 0.0000E+00 A4 =  5.7453E−02 3.3062E−01 −6.5727E−02 5.6207E−02 7.3197E−02 A6 = −2.3092E−02−5.3812E−01 −8.8703E−03 5.9949E−02 4.6337E−01 A8 =  7.3024E−03 1.2811E+00  6.5975E−02 2.2511E−01 −3.0912E+00  A10 = −1.6738E−03−2.0857E+00 −2.9040E−01 −1.3594E+00  2.5435E+00 A12 =  2.6930E−04 2.1896E+00  7.2610E−01 6.4752E+00 1.2774E+02 A14 = −2.9449E−05−1.4104E+00 −9.6721E−01 −1.7028E+01  −9.4576E+02  A16 =  2.0877E−06 4.9028E−01  7.1409E−01 2.5781E+01 3.0749E+03 A18 = −8.6698E−08−6.5583E−02 −2.8102E−01 −2.2885E+01  −4.9008E+03  A20 =  1.6115E−09−1.9904E−03  4.6760E−02 9.5083E+00 3.1134E+03 Surface # 7 9 10 11 12 k = 0.0000E+00  0.0000E+00 −6.9027E+00 6.5856E+00 −1.0000E+00 A4 =−1.6825E−01 −1.6259E−01  8.3536E−02 3.3862E−01  1.3859E−01 A6 = 1.3634E+00  1.1525E+00 −2.1540E+00 −2.7778E+00  −1.6626E+00 A8 =−9.5080E+00 −5.9318E+00  8.6006E+00 7.8959E+00  4.7657E+00 A10 = 5.4559E+01  2.3993E+01 −2.4160E+01 −1.6265E+01  −7.8235E+00 A12 =−2.1243E+02 −6.7181E+01  4.5339E+01 2.4459E+01  8.1021E+00 A14 = 5.3713E+02  1.2434E+02 −5.4971E+01 −3.1236E+01  −5.3867E+00 A16 =−8.3959E+02 −1.4457E+02  4.1537E+01 3.3887E+01  2.2596E+00 A18 = 7.3464E+02  9.5458E+01 −1.7574E+01 −2.3627E+01  −5.5257E−01 A20 =−2.7521E+02 −2.7357E+01  3.0378E+00 7.0924E+00  6.1150E−02 Surface # 1314 15 16 k = −6.5240E+00 0.0000E+00  0.0000E+00  0.0000E+00 A4 =−9.6566E−02 4.5866E−03 −1.1342E−01 −1.9040E−02 A6 = −3.5146E−013.0898E−02  1.0363E−01 −1.6260E−01 A8 =  1.0843E+00 −3.1203E−01 −6.0312E−01  1.4488E−01 A10 = −1.4332E+00 5.0219E−01  9.2135E−01−6.3578E−02 A12 =  1.1157E+00 −3.6376E−01  −6.7404E−01  1.6539E−02 A14 =−5.5044E−01 1.3845E−01  2.7480E−01 −2.6769E−03 A16 =  1.7088E−01−2.7346E−02  −6.4242E−02  2.6556E−04 A18 = −3.0634E−02 2.3365E−03 8.0973E−03 −1.4829E−05 A20 =  2.4177E−03 −3.1615E−05  −4.2812E−04 3.5776E−07

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentwith corresponding values for the 2nd embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following conditions:

2nd Embodiment f [mm] 1.46 ΣAT/(T12 + T67) 1.39 Fno 2.21 TL/ImgH 2.18HFOV [deg.] 71.0 Y11 [mm] 2.79 FOV [deg.] 142.0 Y72 [mm] 2.55 Nmax 1.705Y11/Y72 1.10 V1/N1 36.26 Y11/ImgH 0.86 V2/N2 14.56 Y72/f 1.74 V3/N317.10 Y72/BL 2.91 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.45 V5/N5 9.60 (R11 +R12)/(R11 − R12) −0.16 V6/N6 36.26 |f1/f2| 0.14 V7/N7 8.21 |f3/f2| 0.37V2 + V5 + V7 53.90 |f4/f2| 0.20 V7 14.00 |f5/f2| 0.30 T12/T23 3.88|f6/f2| 0.16 CT2/BL 0.52 f6/f7 −0.51 Dr3r12/(T23 + 7.33 — — T34 + T45 +T56)

3rd Embodiment

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure. FIG. 6 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 3rdembodiment. In FIG. 5, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 395. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 310, a second lenselement 320, an aperture stop 300, a third lens element 330, a stop 301,a fourth lens element 340, a fifth lens element 350, a sixth lenselement 360, a seventh lens element 370, an IR-cut filter 380 and animage surface 390. The photographing optical lens assembly includesseven lens elements (310, 320, 330, 340, 350, 360 and 370) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 310 with negative refractive power has anobject-side surface 311 being concave in a paraxial region thereof andan image-side surface 312 being concave in a paraxial region thereof.The first lens element 310 is made of plastic material and has theobject-side surface 311 and the image-side surface 312 being bothaspheric. The object-side surface 311 of the first lens element 310 hasat least one convex critical point in an off-axis region thereof.

The second lens element 320 with negative refractive power has anobject-side surface 321 being convex in a paraxial region thereof and animage-side surface 322 being concave in a paraxial region thereof. Thesecond lens element 320 is made of plastic material and has theobject-side surface 321 and the image-side surface 322 being bothaspheric.

The third lens element 330 with positive refractive power has anobject-side surface 331 being convex in a paraxial region thereof and animage-side surface 332 being convex in a paraxial region thereof. Thethird lens element 330 is made of plastic material and has theobject-side surface 331 and the image-side surface 332 being bothaspheric.

The fourth lens element 340 with positive refractive power has anobject-side surface 341 being convex in a paraxial region thereof and animage-side surface 342 being convex in a paraxial region thereof. Thefourth lens element 340 is made of plastic material and has theobject-side surface 341 and the image-side surface 342 being bothaspheric.

The fifth lens element 350 with negative refractive power has anobject-side surface 351 being concave in a paraxial region thereof andan image-side surface 352 being concave in a paraxial region thereof.The fifth lens element 350 is made of plastic material and has theobject-side surface 351 and the image-side surface 352 being bothaspheric. The image-side surface 352 of the fifth lens element 350 hasat least two inflection points and at least two critical points in anoff-axis region thereof.

The sixth lens element 360 with positive refractive power has anobject-side surface 361 being convex in a paraxial region thereof and animage-side surface 362 being convex in a paraxial region thereof. Thesixth lens element 360 is made of plastic material and has theobject-side surface 361 and the image-side surface 362 being bothaspheric. The object-side surface 361 of the sixth lens element 360 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 370 with negative refractive power has anobject-side surface 371 being convex in a paraxial region thereof and animage-side surface 372 being concave in a paraxial region thereof. Theseventh lens element 370 is made of plastic material and has theobject-side surface 371 and the image-side surface 372 being bothaspheric. The object-side surface 371 of the seventh lens element 370has at least one concave critical point in an off-axis region thereof.The image-side surface 372 of the seventh lens element 370 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 380 is made of glass material and located between theseventh lens element 370 and the image surface 390, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 395 is disposed on or near the image surface 390 of thephotographing optical lens assembly.

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 1.46 mm, Fno = 1.87, HFOV = 70.9 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 −4.663 (ASP) 0.834 Plastic 1.544 56.0 −2.35 21.868 (ASP) 1.046 3 Lens 2 4.942 (ASP) 0.470 Plastic 1.607 26.6 −49.01 44.086 (ASP) 0.351 5 Ape. Stop Plano −0.062 6 Lens 3 4.485 (ASP) 0.467Plastic 1.583 30.2 4.45 7 −5.919 (ASP) 0.067 8 Stop Plano 0.041 9 Lens 43.794 (ASP) 0.823 Plastic 1.544 56.0 3.30 10 −3.139 (ASP) 0.198 11 Lens5 −27.903 (ASP) 0.250 Plastic 1.698 16.3 −4.56 12 3.605 (ASP) 0.052 13Lens 6 1.877 (ASP) 1.096 Plastic 1.544 56.0 2.42 14 −3.522 (ASP) 0.48715 Lens 7 10.727 (ASP) 0.580 Plastic 1.705 14.0 −5.43 16 2.759 (ASP)0.300 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18 Plano 0.286 19Image Plano 0.000 Note: Reference wavelength is 587.6 nm (d-line). Aneffective radius of the stop 301 (Surface 8) is 0.800 mm.

TABLE 6 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.0000E+01−3.1518E+00  0.0000E+00 2.0019E+00 0.0000E+00 A4 =  4.0512E−02 2.3042E−01 −4.3496E−02 6.8206E−02 3.3946E−02 A6 = −1.1037E−02−1.8289E−01 −1.8856E−02 −1.1197E−01  4.9048E−01 A8 =  2.1428E−03 2.7179E−01  8.9692E−02 1.5562E+00 −4.7548E+00  A10 = −2.7326E−04−2.8776E−01 −1.4958E−01 −7.3628E+00  3.0255E+01 A12 =  2.2120E−05 1.7865E−01  1.5858E−01 2.2219E+01 −1.2032E+02  A14 = −1.0301E−06−5.8059E−02 −1.1848E−01 −4.2149E+01  3.0143E+02 A16 =  2.1154E−08 7.4645E−03  5.9343E−02 4.8590E+01 −4.6377E+02  A18 = — — −1.7470E−02−3.1192E+01  4.0081E+02 A20 = — —  2.2631E−03 8.5283E+00 −1.4932E+02 Surface # 7 9 10 11 12 k =  0.0000E+00 0.0000E+00 −2.4122E+01−9.0000E+01 −1.0000E+00 A4 =  4.1064E−02 4.0308E−02 −1.1901E−01 6.7942E−02 −4.0297E−02 A6 = −5.1376E−02 8.4809E−02 −6.4369E−01−1.1016E+00 −1.0618E+00 A8 = −5.6473E−02 −6.2005E−01   2.5347E+00 2.4113E+00  3.4901E+00 A10 =  3.2567E+00 2.0983E+00 −6.4098E+00−3.2038E+00 −6.0458E+00 A12 = −2.0033E+01 −4.3226E+00   1.0636E+01 8.8086E−01  6.3925E+00 A14 =  6.0917E+01 5.5620E+00 −1.1146E+01 3.1630E+00 −4.2460E+00 A16 = −1.0172E+02 −4.3371E+00   7.0896E+00−4.1245E+00  1.7382E+00 A18 =  8.9316E+01 1.8781E+00 −2.4758E+00 2.0717E+00 −4.0156E−01 A20 = −3.2389E+01 −3.4724E−01   3.6040E−01−3.9714E−01  3.9983E−02 Surface # 13 14 15 16 k = −9.4548E+00 0.0000E+00  0.0000E+00  0.0000E+00 A4 = −1.1490E−01 −2.5694E−02−1.2543E−01 −2.6730E−03 A6 = −4.7140E−01 −1.3920E−01  8.3976E−02−2.2258E−01 A8 =  1.5538E+00  1.0017E−01 −7.8918E−01  2.0236E−01 A10 =−2.1118E+00 −1.5355E−02  1.3874E+00 −9.2007E−02 A12 =  1.6200E+00 4.7263E−02 −1.1458E+00  2.5017E−02 A14 = −7.4201E−01 −7.4979E−02 5.3379E−01 −4.2602E−03 A16 =  1.9571E−01  4.3696E−02 −1.4495E−01 4.4715E−04 A18 = −2.5956E−02 −1.1555E−02  2.1495E−02 −2.6548E−05 A20 = 1.1594E−03  1.1824E−03 −1.3472E−03  6.8407E−07

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 3rd embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following conditions:

3rd Embodiment f [mm] 1.46 ΣAT/(T12 + T67) 1.42 Fno 1.87 TL/ImgH 2.32HFOV [deg.] 70.9 Y11 [mm] 3.32 FOV [deg.] 141.8 Y72 [mm] 2.51 Nmax 1.705Y11/Y72 1.32 V1/N1 36.26 Y11/ImgH 1.02 V2/N2 16.57 Y72/f 1.72 V3/N319.11 Y72/BL 3.16 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.43 V5/N5 9.60 (R11 +R12)/(R11 − R12) −0.30 V6/N6 36.26 |f1/f2| 0.05 V7/N7 8.21 |f3/f2| 0.09V2 + V5 + V7 56.94 |f4/f2| 0.07 V7 14.00 |f5/f2| 0.09 T12/T23 3.62|f6/f2| 0.05 CT2/BL 0.59 f6/f7 −0.45 Dr3r12/(T23 + 5.80 — — T34 + T45 +T56)

4th Embodiment

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure. FIG. 8 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 4thembodiment. In FIG. 7, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 495. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 410, a second lenselement 420, an aperture stop 400, a third lens element 430, a stop 401,a fourth lens element 440, a fifth lens element 450, a stop 402, a sixthlens element 460, a seventh lens element 470, an IR-cut filter 480 andan image surface 490. The photographing optical lens assembly includesseven lens elements (410, 420, 430, 440, 450, 460 and 470) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 410 with negative refractive power has anobject-side surface 411 being concave in a paraxial region thereof andan image-side surface 412 being concave in a paraxial region thereof.The first lens element 410 is made of plastic material and has theobject-side surface 411 and the image-side surface 412 being bothaspheric. The object-side surface 411 of the first lens element 410 hasat least one convex critical point in an off-axis region thereof.

The second lens element 420 with positive refractive power has anobject-side surface 421 being convex in a paraxial region thereof and animage-side surface 422 being concave in a paraxial region thereof. Thesecond lens element 420 is made of plastic material and has theobject-side surface 421 and the image-side surface 422 being bothaspheric.

The third lens element 430 with positive refractive power has anobject-side surface 431 being convex in a paraxial region thereof and animage-side surface 432 being convex in a paraxial region thereof. Thethird lens element 430 is made of plastic material and has theobject-side surface 431 and the image-side surface 432 being bothaspheric.

The fourth lens element 440 with positive refractive power has anobject-side surface 441 being convex in a paraxial region thereof and animage-side surface 442 being convex in a paraxial region thereof. Thefourth lens element 440 is made of plastic material and has theobject-side surface 441 and the image-side surface 442 being bothaspheric.

The fifth lens element 450 with negative refractive power has anobject-side surface 451 being concave in a paraxial region thereof andan image-side surface 452 being convex in a paraxial region thereof. Thefifth lens element 450 is made of plastic material and has theobject-side surface 451 and the image-side surface 452 being bothaspheric. The image-side surface 452 of the fifth lens element 450 hasat least one inflection point and at least one critical point in anoff-axis region thereof.

The sixth lens element 460 with positive refractive power has anobject-side surface 461 being convex in a paraxial region thereof and animage-side surface 462 being concave in a paraxial region thereof. Thesixth lens element 460 is made of plastic material and has theobject-side surface 461 and the image-side surface 462 being bothaspheric. The object-side surface 461 of the sixth lens element 460 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 470 with negative refractive power has anobject-side surface 471 being convex in a paraxial region thereof and animage-side surface 472 being concave in a paraxial region thereof. Theseventh lens element 470 is made of plastic material and has theobject-side surface 471 and the image-side surface 472 being bothaspheric. The object-side surface 471 of the seventh lens element 470has at least one concave critical point in an off-axis region thereof.The image-side surface 472 of the seventh lens element 470 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 480 is made of glass material and located between theseventh lens element 470 and the image surface 490, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 495 is disposed on or near the image surface 490 of thephotographing optical lens assembly.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 1.95 mm, Fno = 2.21, HFOV = 64.0 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 −5.145 (ASP) 0.516 Plastic 1.545 56.1 −2.54 21.962 (ASP) 0.729 3 Lens 2 2.993 (ASP) 0.971 Plastic 1.639 23.5 11.59 44.390 (ASP) 0.223 5 Ape. Stop Plano −0.066 6 Lens 3 2.225 (ASP) 0.527Plastic 1.545 55.5 2.99 7 −5.604 (ASP) −0.019 8 Stop Plano 0.159 9 Lens4 4.110 (ASP) 0.596 Plastic 1.544 56.0 3.20 10 −2.864 (ASP) 0.158 11Lens 5 −0.874 (ASP) 0.365 Plastic 1.639 23.5 −2.30 12 −2.512 (ASP)−0.065 13 Stop Plano 0.118 14 Lens 6 1.347 (ASP) 0.891 Plastic 1.54456.0 2.77 15 9.859 (ASP) 0.350 16 Lens 7 1.802 (ASP) 0.480 Plastic 1.58728.3 −12.19 17 1.298 (ASP) 0.500 18 IR-cut filter Plano 0.210 Glass1.517 64.2 — 19 Plano 0.328 20 Image Plano 0.000 Note: Referencewavelength is 587.6 nm (d-line). An effective radius of the stop 401(Surface 8) is 0.800 mm. An effective radius of the stop 402 (Surface13) is 1.270 mm. An effective radius of the image-side surface 472(Surface 17) is 2.500 mm.

TABLE 8 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.9000E+012.7423E−02 −3.0145E+01  −5.4598E+01  −2.7691E+00 A4 =  8.9708E−021.9875E−01 1.1369E−01 1.3744E−02 −7.3865E−02 A6 = −4.7586E−02−9.0282E−02  −1.7707E−01  3.1843E−01  2.0635E−03 A8 =  1.6787E−021.1257E−01 1.8632E−01 −1.5993E+00   9.3668E−01 A10 = −3.8492E−03−2.2288E−01  −1.0646E−01  5.2969E+00 −3.7612E+00 A12 =  5.4132E−042.4312E−01 2.0041E−02 −8.4169E+00   6.2206E+00 A14 = −4.2072E−05−1.1948E−01  2.9243E−04 5.2529E+00 −3.7539E+00 A16 =  1.3916E−062.0830E−02 — — — Surface # 7 9 10 11 12 k = −6.0864E+00 −1.3913E+01−3.1431E+00 −1.1822E+00 −3.0241E+01 A4 = −4.2699E−01 −4.2784E−01 4.2362E−02  9.5247E−01 −8.4085E−03 A6 =  4.8164E−01  7.4118E−01−9.2109E−01 −4.0582E+00 −5.0257E−01 A8 = −5.9136E−01 −2.9950E+00 8.6064E−01  1.3806E+01  1.9506E+00 A10 =  1.0741E+00  9.6278E+00 1.2710E+00 −4.0470E+01 −3.4276E+00 A12 = −1.9664E+00 −1.6436E+01−3.8377E+00  9.0554E+01  3.6465E+00 A14 =  1.7273E+00  1.3470E+01 3.1003E+00 −1.3830E+02 −2.5786E+00 A16 = −2.8792E−01 −4.0869E+00−7.3322E−01  1.3044E+02  1.2261E+00 A18 = — — — −6.7309E+01 −3.5651E−01A20 = — — —  1.4453E+01  4.7040E−02 Surface # 14 15 16 17 k =−6.2108E−01  0.0000E+00 −6.0923E−01 −9.3990E−01 A4 = −4.4367E−01−7.7558E−02 −3.5735E−01 −3.6884E−01 A6 =  4.7595E−01 −2.0115E−02 8.8999E−02  2.3337E−01 A8 = −4.2236E−01  4.7058E−02  2.3280E−02−1.1179E−01 A10 =  2.7652E−01 −7.2969E−03 −2.6550E−02  3.8561E−02 A12 =−1.2957E−01 −1.1572E−02  1.2944E−02 −9.4067E−03 A14 =  3.9723E−02 6.8025E−03 −4.5323E−03  1.5758E−03 A16 = −7.0662E−03 −1.6157E−03 1.0053E−03 −1.7273E−04 A18 =  5.9411E−04  1.8120E−04 −1.1822E−04 1.1196E−05 A20 = −1.4300E−05 −7.8266E−06  5.5117E−06 −3.2591E−07

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 4th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following conditions:

4th Embodiment f [mm] 1.95 ΣAT/(T12 + T67) 1.47 Fno 2.21 TL/ImgH 2.15HFOV [deg.] 64.0 Y11 [mm] 2.44 FOV [deg.] 128.0 Y72 [mm] 2.50 Nmax 1.639Y11/Y72 0.98 V1/N1 36.30 Y11/ImgH 0.75 V2/N2 14.34 Y72/f 1.28 V3/N335.94 Y72/BL 2.41 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.45 V5/N5 14.34(R11 + R12)/(R11 − R12) −1.32 V6/N6 36.26 |f1/f2| 0.22 V7/N7 17.83|f3/f2| 0.26 V2 + V5 + V7 75.28 |f4/f2| 0.28 V7 28.30 |f5/f2| 0.20T12/T23 4.64 |f6/f2| 0.24 CT2/BL 0.94 f6/f7 −0.23 Dr3r12/(T23 + 7.59 — —T34 + T45 + T56)

5th Embodiment

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure. FIG. 10 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 5thembodiment. In FIG. 9, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 595. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 510, a second lenselement 520, an aperture stop 500, a third lens element 530, a stop 501,a fourth lens element 540, a fifth lens element 550, a stop 502, a sixthlens element 560, a seventh lens element 570, an IR-cut filter 580 andan image surface 590. The photographing optical lens assembly includesseven lens elements (510, 520, 530, 540, 550, 560 and 570) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 510 with negative refractive power has anobject-side surface 511 being convex in a paraxial region thereof and animage-side surface 512 being concave in a paraxial region thereof. Thefirst lens element 510 is made of plastic material and has theobject-side surface 511 and the image-side surface 512 being bothaspheric.

The second lens element 520 with positive refractive power has anobject-side surface 521 being convex in a paraxial region thereof and animage-side surface 522 being concave in a paraxial region thereof. Thesecond lens element 520 is made of plastic material and has theobject-side surface 521 and the image-side surface 522 being bothaspheric.

The third lens element 530 with positive refractive power has anobject-side surface 531 being convex in a paraxial region thereof and animage-side surface 532 being convex in a paraxial region thereof. Thethird lens element 530 is made of plastic material and has theobject-side surface 531 and the image-side surface 532 being bothaspheric.

The fourth lens element 540 with positive refractive power has anobject-side surface 541 being convex in a paraxial region thereof and animage-side surface 542 being convex in a paraxial region thereof. Thefourth lens element 540 is made of plastic material and has theobject-side surface 541 and the image-side surface 542 being bothaspheric.

The fifth lens element 550 with negative refractive power has anobject-side surface 551 being concave in a paraxial region thereof andan image-side surface 552 being concave in a paraxial region thereof.The fifth lens element 550 is made of plastic material and has theobject-side surface 551 and the image-side surface 552 being bothaspheric. The image-side surface 552 of the fifth lens element 550 hasat least two inflection points and at least two critical points in anoff-axis region thereof.

The sixth lens element 560 with positive refractive power has anobject-side surface 561 being convex in a paraxial region thereof and animage-side surface 562 being convex in a paraxial region thereof. Thesixth lens element 560 is made of plastic material and has theobject-side surface 561 and the image-side surface 562 being bothaspheric. The object-side surface 561 of the sixth lens element 560 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 570 with positive refractive power has anobject-side surface 571 being convex in a paraxial region thereof and animage-side surface 572 being concave in a paraxial region thereof. Theseventh lens element 570 is made of plastic material and has theobject-side surface 571 and the image-side surface 572 being bothaspheric. The object-side surface 571 of the seventh lens element 570has at least one concave critical point in an off-axis region thereof.The image-side surface 572 of the seventh lens element 570 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 580 is made of glass material and located between theseventh lens element 570 and the image surface 590, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 595 is disposed on or near the image surface 590 of thephotographing optical lens assembly.

The detailed optical data of the 5th embodiment are shown in Table 9 andthe aspheric surface data are shown in Table 10 below.

TABLE 9 5th Embodiment f = 1.86 mm, Fno = 2.39, HFOV = 67.2 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 200.000 (ASP) 0.540 Plastic 1.545 56.1 −2.28 21.236 (ASP) 0.830 3 Lens 2 2.837 (ASP) 0.980 Plastic 1.639 23.5 8.83 44.942 (ASP) 0.173 5 Ape. Stop Plano −0.060 6 Lens 3 2.361 (ASP) 0.518Plastic 1.545 56.1 2.49 7 −2.943 (ASP) −0.030 8 Stop Plano 0.161 9 Lens4 179.860 (ASP) 0.607 Plastic 1.544 56.0 5.05 10 −2.788 (ASP) 0.075 11Lens 5 −2.764 (ASP) 0.385 Plastic 1.639 23.5 −2.57 12 4.265 (ASP) 0.01413 Stop Plano 0.108 14 Lens 6 1.764 (ASP) 0.764 Plastic 1.544 56.0 3.2115 −174.409 (ASP) 0.294 16 Lens 7 1.090 (ASP) 0.459 Plastic 1.534 55.9107.62 17 0.948 (ASP) 0.500 18 IR-cut filter Plano 0.210 Glass 1.51764.2 — 19 Plano 0.463 20 Image Plano 0.000 Note: Reference wavelength is587.6 nm (d-line). An effective radius of the stop 501 (Surface 8) is0.780 mm. An effective radius of the stop 502 (Surface 13) is 1.280 mm.

TABLE 10 Aspheric Coefficients Surface # 1 2 3 4 6 k = −6.0652E+01−1.0000E+00 −4.8463E+00 −9.6000E+01  0.0000E+00 A4 =  5.9753E−02 1.1076E−01 −1.5175E−04  1.0620E−01 −6.1458E−02 A6 = −2.6548E−02 6.9375E−02 −1.7122E−02 −2.9826E−01  2.3851E−01 A8 =  6.8969E−03−8.9176E−02 −7.8013E−04  1.5175E+00 −8.6010E−01 A10 = −1.0445E−03−2.7718E−03  4.4390E−03 −3.1583E+00  1.8355E+00 A12 =  8.5299E−05 5.1774E−02 −4.1565E−03  3.0130E+00 −1.1327E+00 A14 = −2.8537E−06−2.1019E−02 — — — Surface # 7 9 10 11 12 k = −3.0055E+01  0.0000E+00 0.0000E+00 6.1849E+00 0.0000E+00 A4 = −3.7298E−01 −2.4386E−01−3.4462E−01 −4.7486E−01  −3.5300E−01  A6 =  2.4104E−01  3.3637E−01 1.0900E+00 1.7083E+00 3.1250E−01 A8 =  2.0580E−01 −1.5420E+00−6.7084E+00 −8.0368E+00  −4.2670E−02  A10 = −1.3576E+00  4.9629E+00 2.2912E+01 2.6183E+01 −2.0642E−01  A12 =  1.8070E+00 −9.2144E+00−4.6965E+01 −5.4905E+01  2.1723E−01 A14 = —  8.0885E+00  5.2417E+016.7668E+01 −8.5179E−02  A16 = — −2.2425E+00 −2.4018E+01 −4.4176E+01 9.6073E−03 A18 = — — −3.9923E+00 1.1876E+01 1.0206E−03 A20 = — — 5.3970E+00 — — Surface # 14 15 16 17 k =  0.0000E+00 0.0000E+00−1.0000E+00 −1.0000E+00 A4 = −1.1955E−01 1.8654E−02 −3.7386E−01−3.9351E−01 A6 = −9.9219E−02 7.6798E−02  1.4779E−01  2.2702E−01 A8 = 2.3353E−01 −2.4619E−01  −6.8513E−02 −1.1522E−01 A10 = −2.5393E−012.7858E−01  1.3824E−02  4.4671E−02 A12 =  1.6464E−01 −1.8000E−01 −1.4726E−03 −1.2562E−02 A14 = −6.5866E−02 7.1811E−02  2.2561E−03 2.4372E−03 A16 =  1.5527E−02 −1.7404E−02  −1.0695E−03 −3.0436E−04 A18 =−1.8928E−03 2.3423E−03  1.8463E−04  2.1830E−05 A20 =  7.7388E−05−1.3403E−04  −1.1119E−05 −6.8144E−07

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 5th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following conditions:

5th Embodiment f [mm] 1.86 ΣAT/(T12 + T67) 1.39 Fno 2.39 TL/ImgH 2.16HFOV [deg.] 67.2 Y11 [mm] 2.46 FOV [deg.] 134.4 Y72 [mm] 2.46 Nmax 1.639Y11/Y72 1.00 V1/N1 36.30 Y11/ImgH 0.76 V2/N2 14.34 Y72/f 1.33 V3/N336.30 Y72/BL 2.10 V4/N4 36.26 (R1 + R2)/(R1 − R2) 1.01 V5/N5 14.34(R11 + R12)/(R11 − R12) −0.98 V6/N6 36.26 |f1/f2| 0.26 V7/N7 36.46|f3/f2| 0.28 V2 + V5 + V7 102.91 |f4/f2| 0.57 V7 55.92 |f5/f2| 0.29T12/T23 7.35 |f6/f2| 0.36 CT2/BL 0.84 f6/f7 0.03 Dr3r12/(T23 + 8.38 — —T34 + T45 + T56)

6th Embodiment

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure. FIG. 12 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 6thembodiment. In FIG. 11, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 695. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 610, a second lenselement 620, an aperture stop 600, a third lens element 630, a stop 601,a fourth lens element 640, a fifth lens element 650, a sixth lenselement 660, a seventh lens element 670, an IR-cut filter 680 and animage surface 690. The photographing optical lens assembly includesseven lens elements (610, 620, 630, 640, 650, 660 and 670) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 610 with negative refractive power has anobject-side surface 611 being concave in a paraxial region thereof andan image-side surface 612 being concave in a paraxial region thereof.The first lens element 610 is made of plastic material and has theobject-side surface 611 and the image-side surface 612 being bothaspheric. The object-side surface 611 of the first lens element 610 hasat least one convex critical point in an off-axis region thereof.

The second lens element 620 with positive refractive power has anobject-side surface 621 being convex in a paraxial region thereof and animage-side surface 622 being convex in a paraxial region thereof. Thesecond lens element 620 is made of plastic material and has theobject-side surface 621 and the image-side surface 622 being bothaspheric.

The third lens element 630 with positive refractive power has anobject-side surface 631 being convex in a paraxial region thereof and animage-side surface 632 being convex in a paraxial region thereof. Thethird lens element 630 is made of plastic material and has theobject-side surface 631 and the image-side surface 632 being bothaspheric.

The fourth lens element 640 with positive refractive power has anobject-side surface 641 being convex in a paraxial region thereof and animage-side surface 642 being convex in a paraxial region thereof. Thefourth lens element 640 is made of plastic material and has theobject-side surface 641 and the image-side surface 642 being bothaspheric.

The fifth lens element 650 with negative refractive power has anobject-side surface 651 being concave in a paraxial region thereof andan image-side surface 652 being concave in a paraxial region thereof.The fifth lens element 650 is made of plastic material and has theobject-side surface 651 and the image-side surface 652 being bothaspheric. The image-side surface 652 of the fifth lens element 650 hasat least two inflection points and at least two critical points in anoff-axis region thereof.

The sixth lens element 660 with positive refractive power has anobject-side surface 661 being convex in a paraxial region thereof and animage-side surface 662 being convex in a paraxial region thereof. Thesixth lens element 660 is made of plastic material and has theobject-side surface 661 and the image-side surface 662 being bothaspheric. The object-side surface 661 of the sixth lens element 660 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 670 with negative refractive power has anobject-side surface 671 being convex in a paraxial region thereof and animage-side surface 672 being concave in a paraxial region thereof. Theseventh lens element 670 is made of plastic material and has theobject-side surface 671 and the image-side surface 672 being bothaspheric. The object-side surface 671 of the seventh lens element 670has at least one concave critical point in an off-axis region thereof.The image-side surface 672 of the seventh lens element 670 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 680 is made of glass material and located between theseventh lens element 670 and the image surface 690, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 695 is disposed on or near the image surface 690 of thephotographing optical lens assembly.

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 1.76 mm, Fno = 2.45, HFOV = 67.5 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −4.845 (ASP) 0.711 Plastic 1.545 56.1−2.38 2 1.862 (ASP) 0.962 3 Lens 2 8.441 (ASP) 0.650 Plastic 1.669 19.510.13 4 −33.287 (ASP) 0.091 5 Ape. Stop Plano 0.072 6 Lens 3 5.451 (ASP)0.925 Plastic 1.545 56.1 4.53 7 −4.244 (ASP) −0.016 8 Stop Plano 0.051 9Lens 4 4.435 (ASP) 0.797 Plastic 1.544 56.0 3.41 10 −2.985 (ASP) 0.06111 Lens 5 −6.177 (ASP) 0.400 Plastic 1.669 19.5 −2.83 12 2.799 (ASP)0.068 13 Lens 6 1.691 (ASP) 0.960 Plastic 1.544 56.0 2.45 14 −5.051(ASP) 0.550 15 Lens 7 20.160 (ASP) 0.575 Plastic 1.669 19.5 −4.98 162.827 (ASP) 0.300 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18Plano 0.374 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 601 (Surface 8) is 0.875 mm.

TABLE 12 Aspheric Coefficients Surface # 1 2 3 4 6 k = −8.2890E+01−1.1355E+00  0.0000E+00 9.0000E+01 0.0000E+00 A4 =  5.2491E−02 2.1140E−01 −1.8019E−02 1.0006E−01 1.3123E−01 A6 = −1.8614E−02−1.6749E−01  8.2753E−03 3.2499E−02 2.5537E−02 A8 =  4.8902E−03 3.6646E−01 −3.0868E−02 −1.3058E−01  −8.8161E−02  A10 = −8.7520E−04−5.2424E−01  6.4032E−02 1.1552E−01 2.3623E−04 A12 =  9.9051E−05 4.4864E−01 −1.6144E−01 −8.0611E−02  3.6963E−02 A14 = −6.3147E−06−2.0180E−01  1.5726E−01 — — A16 =  1.7437E−07  3.5276E−02 −5.2672E−02 —— Surface # 7 9 10 11 12 k = 0.0000E+00  0.0000E+00 −9.0000E+015.4051E+00 −1.0000E+00  A4 = −1.0896E−01  −1.2165E−01  3.0648E−017.7860E−01 6.0973E−02 A6 = 4.2967E−01  4.4614E−01 −2.2705E+00−3.7161E+00  −7.3577E−01  A8 = −4.9368E−01  −6.7720E−01  4.7561E+008.9475E+00 1.3519E+00 A10 = 2.2341E−01  7.0929E−01 −5.6106E+00−1.5892E+01  −1.3196E+00  A12 = 2.1153E−01 −5.0799E−01  3.8481E+002.1510E+01 7.0076E−01 A14 = −3.3006E−01   2.2238E−01 −1.4058E+00−2.1342E+01  −1.6818E−01  A16 = 1.2312E−01 −4.4531E−02  2.0912E−011.4150E+01 2.7978E−03 A18 = — — — −5.4350E+00  3.8563E−03 A20 = — — —8.9988E−01 — Surface # 13 14 15 16 k = −5.9904E+00  0.0000E+00 0.0000E+00 0.0000E+00 A4 = −1.0587E−01 −8.1411E−03 −7.0789E−021.4838E−02 A6 =  1.1362E−02  4.3112E−02  2.7566E−02 −2.0892E−01  A8 =−3.2658E−01 −3.2344E−01 −4.5787E−01 1.8139E−01 A10 =  1.0605E+00 5.4600E−01  7.4430E−01 −8.1402E−02  A12 = −1.4602E+00 −4.4559E−01−5.5903E−01 2.2101E−02 A14 =  1.0861E+00  2.0096E−01  2.3603E−01−3.7851E−03  A16 = −4.5464E−01 −5.0456E−02 −5.8959E−02 4.0150E−04 A18 = 1.0097E−01  6.4258E−03  8.3253E−03 −2.4155E−05  A20 = −9.2792E−03−3.0229E−04 −5.1846E−04 6.3103E−07

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 6th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following conditions:

6th Embodiment f [mm] 1.76 ΣAT/(T12 + T67) 1.22 Fno 2.45 TL/ImgH 2.39HFOV [deg.] 67.5 Y11 [mm] 2.74 FOV [deg.] 135.0 Y72 [mm] 2.46 Nmax 1.669Y11/Y72 1.11 V1/N1 36.30 Y11/ImgH 0.85 V2/N2 11.65 Y72/f 1.40 V3/N336.30 Y72/BL 2.78 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.44 V5/N5 11.65(R11 + R12)/(R11 − R12) −0.50 V6/N6 36.26 |f1/f2| 0.23 V7/N7 11.65|f3/f2| 0.45 V2 + V5 + V7 58.36 |f4/f2| 0.34 V7 19.45 |f5/f2| 0.28T12/T23 5.90 |f6/f2| 0.24 CT2/BL 0.73 f6/f7 −0.49 Dr3r12/(T23 + 12.41 —— T34 + T45 + T56)

7th Embodiment

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure. FIG. 14 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 7thembodiment. In FIG. 13, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 795. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 710, a second lenselement 720, an aperture stop 700, a third lens element 730, a stop 701,a fourth lens element 740, a fifth lens element 750, a stop 702, a sixthlens element 760, a seventh lens element 770, an IR-cut filter 780 andan image surface 790. The photographing optical lens assembly includesseven lens elements (710, 720, 730, 740, 750, 760 and 770) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 710 with negative refractive power has anobject-side surface 711 being convex in a paraxial region thereof and animage-side surface 712 being concave in a paraxial region thereof. Thefirst lens element 710 is made of plastic material and has theobject-side surface 711 and the image-side surface 712 being bothaspheric.

The second lens element 720 with positive refractive power has anobject-side surface 721 being convex in a paraxial region thereof and animage-side surface 722 being concave in a paraxial region thereof. Thesecond lens element 720 is made of plastic material and has theobject-side surface 721 and the image-side surface 722 being bothaspheric.

The third lens element 730 with positive refractive power has anobject-side surface 731 being convex in a paraxial region thereof and animage-side surface 732 being convex in a paraxial region thereof. Thethird lens element 730 is made of plastic material and has theobject-side surface 731 and the image-side surface 732 being bothaspheric.

The fourth lens element 740 with positive refractive power has anobject-side surface 741 being convex in a paraxial region thereof and animage-side surface 742 being convex in a paraxial region thereof. Thefourth lens element 740 is made of plastic material and has theobject-side surface 741 and the image-side surface 742 being bothaspheric.

The fifth lens element 750 with negative refractive power has anobject-side surface 751 being concave in a paraxial region thereof andan image-side surface 752 being concave in a paraxial region thereof.The fifth lens element 750 is made of plastic material and has theobject-side surface 751 and the image-side surface 752 being bothaspheric. The image-side surface 752 of the fifth lens element 750 hasat least two inflection points and at least two critical points in anoff-axis region thereof.

The sixth lens element 760 with positive refractive power has anobject-side surface 761 being convex in a paraxial region thereof and animage-side surface 762 being convex in a paraxial region thereof. Thesixth lens element 760 is made of plastic material and has theobject-side surface 761 and the image-side surface 762 being bothaspheric. The object-side surface 761 of the sixth lens element 760 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 770 with negative refractive power has anobject-side surface 771 being convex in a paraxial region thereof and animage-side surface 772 being concave in a paraxial region thereof. Theseventh lens element 770 is made of plastic material and has theobject-side surface 771 and the image-side surface 772 being bothaspheric. The object-side surface 771 of the seventh lens element 770has at least one concave critical point in an off-axis region thereof.The image-side surface 772 of the seventh lens element 770 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 780 is made of glass material and located between theseventh lens element 770 and the image surface 790, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 795 is disposed on or near the image surface 790 of thephotographing optical lens assembly.

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 2.10 mm, Fno = 2.39, HFOV = 64.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 200.000 (ASP) 0.530 Plastic 1.545 56.1−2.48 2 1.339 (ASP) 0.739 3 Lens 2 2.582 (ASP) 0.920 Plastic 1.639 23.59.10 4 4.002 (ASP) 0.226 5 Ape. Stop Plano −0.066 6 Lens 3 2.248 (ASP)0.529 Plastic 1.545 56.1 2.89 7 −4.824 (ASP) −0.036 8 Stop Plano 0.155 9Lens 4 4.886 (ASP) 0.596 Plastic 1.544 56.0 3.40 10 −2.852 (ASP) 0.08311 Lens 5 −2.019 (ASP) 0.385 Plastic 1.639 23.5 −2.85 12 19.936 (ASP)0.067 13 Stop Plano 0.173 14 Lens 6 3.105 (ASP) 0.766 Plastic 1.544 56.03.59 15 −4.818 (ASP) 0.035 16 Lens 7 1.430 (ASP) 0.580 Plastic 1.53455.9 −10.48 17 0.978 (ASP) 0.700 18 IR-cut filter Plano 0.210 Glass1.517 64.2 — 19 Plano 0.399 20 Image Plano 0.000 Note: Referencewavelength is 587.6 nm (d-line). An effective radius of the stop 701(Surface 8) is 0.810 mm. An effective radius of the stop 702 (Surface13) is 1.280 mm.

TABLE 14 Aspheric Coefficients Surface # 1 2 3 4 6 k = 9.9000E+01−1.0000E+00   0.0000E+00 −8.3734E+01 0.0000E+00 A4 = 2.6081E−024.8362E−02 −5.3675E−02  8.2073E−02 −1.1843E−01  A6 = −7.2472E−03 9.6222E−03 −1.6589E−03 −8.6224E−02 1.5959E−01 A8 = 1.9015E−03 3.7180E−02 2.7472E−02 −2.1402E−01 −2.9560E−01  A10 = −3.4801E−04  −6.1261E−02 −2.3464E−02  2.3118E+00 2.9898E−01 A12 = 3.5027E−05 5.9761E−02−2.0813E−03 −5.1043E+00 — A14 = −1.3544E−06  −2.0427E−02   2.7036E−03 4.0276E+00 — Surface # 7 9 10 11 12 k = −1.0459E+00  0.0000E+00 0.0000E+00  2.2263E+00 0.0000E+00 A4 = −4.1057E−01 −3.8113E−01−6.4486E−02 −8.2811E−02 −1.5017E−01  A6 =  3.3351E−01  2.4745E−01−5.6220E−01  3.6579E−02 5.2506E−02 A8 = −3.6903E−02 −4.6480E−01 7.7238E−01 −5.6434E−01 3.5029E−01 A10 = −3.9952E−01  2.1392E+00 3.7564E−01  3.0339E+00 −6.3511E−01  A12 =  4.4996E−01 −4.3452E+00−2.5706E+00 −6.3812E+00 4.9595E−01 A14 = —  3.9162E+00  2.6878E+00 5.6529E+00 −1.8775E−01  A16 = — −1.2850E+00 −8.6724E−01 −1.7745E+002.8096E−02 Surface # 14 15 16 17 k = 0.0000E+00 0.0000E+00 −1.0000E+00−1.0000E+00 A4 = 6.6513E−02 1.0812E−01 −3.1858E−01 −4.1310E−01 A6 =−3.5850E−01  −2.2529E−01   2.6797E−03  2.7164E−01 A8 = 6.2989E−013.9865E−01  2.5021E−01 −1.3357E−01 A10 = −6.8576E−01  −4.1179E−01 −2.5910E−01  4.5591E−02 A12 = 4.7127E−01 2.4377E−01  1.2852E−01−1.0708E−02 A14 = −2.0348E−01  −8.6063E−02  −3.6010E−02  1.7015E−03 A16= 5.2877E−02 1.7910E−02  5.8478E−03 −1.7462E−04 A18 = −7.4305E−03 −2.0121E−03  −5.1621E−04  1.0420E−05 A20 = 4.2075E−04 9.3075E−05 1.9246E−05 −2.7413E−07

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 7th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following conditions:

7th Embodiment f [mm] 2.10 ΣAT/(T12 + T67) 1.78 Fno 2.39 TL/ImgH 2.16HFOV [deg.] 64.0 Y11 [mm] 2.41 FOV [deg.] 128.0 Y72 [mm] 2.55 Nmax 1.639Y11/Y72 0.95 V1/N1 36.30 Y11/ImgH 0.75 V2/N2 14.34 Y72/f 1.21 V3/N336.30 Y72/BL 1.95 V4/N4 36.26 (R1 + R2)/(R1 − R2) 1.01 V5/N5 14.34(R11 + R12)/(R11 − R12) −0.22 V6/N6 36.26 |f1/f2| 0.27 V7/N7 36.46|f3/f2| 0.32 V2 + V5 + V7 102.91 |f4/f2| 0.37 V7 55.92 |f5/f2| 0.31T12/T23 4.62 |f6/f2| 0.39 CT2/BL 0.70 f6/f7 −0.34 Dr3r12/(T23 + 6.31 — —T34 + T45 + T56)

8th Embodiment

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure. FIG. 16 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 8thembodiment. In FIG. 15, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 895. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 810, a second lenselement 820, an aperture stop 800, a third lens element 830, a stop 801,a fourth lens element 840, a fifth lens element 850, a stop 802, a sixthlens element 860, a seventh lens element 870, an IR-cut filter 880 andan image surface 890. The photographing optical lens assembly includesseven lens elements (810, 820, 830, 840, 850, 860 and 870) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 810 with negative refractive power has anobject-side surface 811 being convex in a paraxial region thereof and animage-side surface 812 being concave in a paraxial region thereof. Thefirst lens element 810 is made of plastic material and has theobject-side surface 811 and the image-side surface 812 being bothaspheric.

The second lens element 820 with positive refractive power has anobject-side surface 821 being convex in a paraxial region thereof and animage-side surface 822 being concave in a paraxial region thereof. Thesecond lens element 820 is made of plastic material and has theobject-side surface 821 and the image-side surface 822 being bothaspheric.

The third lens element 830 with positive refractive power has anobject-side surface 831 being convex in a paraxial region thereof and animage-side surface 832 being convex in a paraxial region thereof. Thethird lens element 830 is made of plastic material and has theobject-side surface 831 and the image-side surface 832 being bothaspheric.

The fourth lens element 840 with positive refractive power has anobject-side surface 841 being convex in a paraxial region thereof and animage-side surface 842 being convex in a paraxial region thereof. Thefourth lens element 840 is made of plastic material and has theobject-side surface 841 and the image-side surface 842 being bothaspheric.

The fifth lens element 850 with negative refractive power has anobject-side surface 851 being concave in a paraxial region thereof andan image-side surface 852 being concave in a paraxial region thereof.The fifth lens element 850 is made of plastic material and has theobject-side surface 851 and the image-side surface 852 being bothaspheric. The image-side surface 852 of the fifth lens element 850 hasat least two inflection points and at least two critical points in anoff-axis region thereof.

The sixth lens element 860 with positive refractive power has anobject-side surface 861 being convex in a paraxial region thereof and animage-side surface 862 being convex in a paraxial region thereof. Thesixth lens element 860 is made of plastic material and has theobject-side surface 861 and the image-side surface 862 being bothaspheric. The object-side surface 861 of the sixth lens element 860 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 870 with positive refractive power has anobject-side surface 871 being convex in a paraxial region thereof and animage-side surface 872 being concave in a paraxial region thereof. Theseventh lens element 870 is made of plastic material and has theobject-side surface 871 and the image-side surface 872 being bothaspheric. The object-side surface 871 of the seventh lens element 870has at least one concave critical point in an off-axis region thereof.The image-side surface 872 of the seventh lens element 870 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 880 is made of glass material and located between theseventh lens element 870 and the image surface 890, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 895 is disposed on or near the image surface 890 of thephotographing optical lens assembly.

The detailed optical data of the 8th embodiment are shown in Table 15and the aspheric surface data are shown in Table 16 below.

TABLE 15 8th Embodiment f = 2.10 mm, Fno = 2.35, HFOV = 64.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 200.000 (ASP) 0.481 Plastic 1.545 56.1−2.60 2 1.406 (ASP) 0.745 3 Lens 2 2.712 (ASP) 0.815 Plastic 1.639 23.58.12 4 5.018 (ASP) 0.204 5 Ape. Stop Plano −0.043 6 Lens 3 2.501 (ASP)0.550 Plastic 1.545 56.1 3.09 7 −4.745 (ASP) −0.057 8 Stop Plano 0.184 9Lens 4 5.113 (ASP) 0.548 Plastic 1.544 56.0 3.88 10 −3.458 (ASP) 0.08511 Lens 5 −2.095 (ASP) 0.370 Plastic 1.660 20.4 −2.92 12 25.284 (ASP)0.045 13 Stop Plano 0.128 14 Lens 6 3.058 (ASP) 0.751 Plastic 1.544 56.04.43 15 −10.413 (ASP) 0.030 16 Lens 7 1.320 (ASP) 0.697 Plastic 1.54456.0 111.29 17 1.098 (ASP) 0.700 18 IR-cut filter Plano 0.210 Glass1.517 64.2 — 19 Plano 0.389 20 Image Plano 0.000 Note: Referencewavelength is 587.6 nm (d-line). An effective radius of the stop 801(Surface 8) is 0.830 mm. An effective radius of the stop 802 (Surface13) is 1.285 mm.

TABLE 16 Aspheric Coefficients Surface # 1 2 3 4 6 k = 9.9000E+01−1.0000E+00  0.0000E+00 −3.3989E+01  0.0000E+00 A4 = 4.1994E−027.5831E−02 −5.5736E−02  −4.0005E−02 −1.2687E−01 A6 = −1.6491E−02 1.1899E−02 1.8464E−02  2.5789E−01  5.2101E−01 A8 = 5.1035E−03 1.8264E−02−3.5185E−02  −1.1971E+00 −3.5854E+00 A10 = −9.9285E−04  −5.2336E−02 4.6832E−02  3.8858E+00  1.3911E+01 A12 = 1.0493E−04 6.1673E−02−4.2298E−02  −6.1653E+00 −3.0597E+01 A14 = −4.3971E−06  −2.2254E−02 1.2753E−02  3.9442E+00  3.4137E+01 A16 = — — — — −1.4862E+01 Surface # 79 10 11 12 k = 1.5094E+01 0.0000E+00  0.0000E+00 2.6797E+00  0.0000E+00A4 = −3.9432E−01  −3.7918E−01   2.4951E−02 3.4985E−02 −1.1491E−01 A6 =3.3158E−01 9.8320E−02 −2.0879E−01 4.0745E−01 −5.9210E−02 A8 =−4.3218E−01  −3.6794E−01  −2.2077E+00 −3.2597E+00   4.2706E−01 A10 =6.1646E−01 1.9524E+00  7.3180E+00 8.5807E+00 −5.5321E−01 A12 =6.6726E−02 −2.8014E+00  −9.7235E+00 −1.0818E+01   3.4145E−01 A14 =−1.7743E+00  1.2385E+00  5.9386E+00 6.4363E+00 −1.0257E−01 A16 =1.4428E+00 4.2866E−02 −1.3659E+00 −1.4089E+00   1.1860E−02 Surface # 1415 16 17 k = 0.0000E+00 0.0000E+00 −1.0000E+00 −1.0000E+00 A4 =1.4238E−01 1.7643E−01 −2.4863E−01 −2.9818E−01 A6 = −6.4811E−01 −5.2149E−01  −1.2932E−01  1.3768E−01 A8 = 1.2372E+00 9.4345E−01 3.7110E−01 −3.5308E−02 A10 = −1.5157E+00  −1.0122E+00  −3.1394E−01−5.0686E−04 A12 = 1.2134E+00 6.6109E−01  1.3494E−01  3.1769E−03 A14 =−6.3303E−01  −2.7070E−01  −3.1785E−02 −9.5906E−04 A16 = 2.0760E−016.8216E−02  4.0073E−03  1.3817E−04

In the 8th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 8th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 15 and Table 16as the following values and satisfy the following conditions:

8th Embodiment f [mm] 2.10 ΣAT/(T12 + T67) 1.70 Fno 2.35 TL/ImgH 2.11HFOV [deg.] 64.0 Y11 [mm] 2.34 FOV [deg.] 128.0 Y72 [mm] 2.55 Nmax 1.660Y11/Y72 0.92 V1/N1 36.30 Y11/ImgH 0.72 V2/N2 14.34 Y72/f 1.21 V3/N336.30 Y72/BL 1.96 V4/N4 36.26 (R1 + R2)/(R1 − R2) 1.01 V5/N5 12.29(R11 + R12)/(R11 − R12) −0.55 V6/N6 36.26 |f1/f2| 0.32 V7/N7 36.26|f3/f2| 0.38 V2 + V5 + V7 99.87 |f4/f2| 0.48 V7 55.98 |f5/f2| 0.36T12/T23 4.63 |f6/f2| 0.55 CT2/BL 0.63 f6/f7 0.04 Dr3r12/(T23 + 6.56 — —T34 + T45 + T56)

9th Embodiment

FIG. 17 is a schematic view of an image capturing unit according to the9th embodiment of the present disclosure. FIG. 18 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 9thembodiment. In FIG. 17, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 995. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 910, a second lenselement 920, an aperture stop 900, a third lens element 930, a stop 901,a fourth lens element 940, a fifth lens element 950, a sixth lenselement 960, a seventh lens element 970, an IR-cut filter 980 and animage surface 990. The photographing optical lens assembly includesseven lens elements (910, 920, 930, 940, 950, 960 and 970) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 910 with negative refractive power has anobject-side surface 911 being concave in a paraxial region thereof andan image-side surface 912 being concave in a paraxial region thereof.The first lens element 910 is made of plastic material and has theobject-side surface 911 and the image-side surface 912 being bothaspheric. The object-side surface 911 of the first lens element 910 hasat least one convex critical point in an off-axis region thereof.

The second lens element 920 with positive refractive power has anobject-side surface 921 being convex in a paraxial region thereof and animage-side surface 922 being concave in a paraxial region thereof. Thesecond lens element 920 is made of plastic material and has theobject-side surface 921 and the image-side surface 922 being bothaspheric.

The third lens element 930 with positive refractive power has anobject-side surface 931 being convex in a paraxial region thereof and animage-side surface 932 being convex in a paraxial region thereof. Thethird lens element 930 is made of plastic material and has theobject-side surface 931 and the image-side surface 932 being bothaspheric.

The fourth lens element 940 with positive refractive power has anobject-side surface 941 being convex in a paraxial region thereof and animage-side surface 942 being convex in a paraxial region thereof. Thefourth lens element 940 is made of plastic material and has theobject-side surface 941 and the image-side surface 942 being bothaspheric.

The fifth lens element 950 with negative refractive power has anobject-side surface 951 being concave in a paraxial region thereof andan image-side surface 952 being convex in a paraxial region thereof. Thefifth lens element 950 is made of plastic material and has theobject-side surface 951 and the image-side surface 952 being bothaspheric. The image-side surface 952 of the fifth lens element 950 hasat least one inflection point and at least one critical point in anoff-axis region thereof.

The sixth lens element 960 with positive refractive power has anobject-side surface 961 being convex in a paraxial region thereof and animage-side surface 962 being concave in a paraxial region thereof. Thesixth lens element 960 is made of plastic material and has theobject-side surface 961 and the image-side surface 962 being bothaspheric. The object-side surface 961 of the sixth lens element 960 hasat least one concave critical point in an off-axis region thereof.

The seventh lens element 970 with negative refractive power has anobject-side surface 971 being convex in a paraxial region thereof and animage-side surface 972 being concave in a paraxial region thereof. Theseventh lens element 970 is made of plastic material and has theobject-side surface 971 and the image-side surface 972 being bothaspheric. The object-side surface 971 of the seventh lens element 970has at least one concave critical point in an off-axis region thereof.The image-side surface 972 of the seventh lens element 970 has at leastone convex critical point in an off-axis region thereof.

The IR-cut filter 980 is made of glass material and located between theseventh lens element 970 and the image surface 990, and will not affectthe focal length of the photographing optical lens assembly. The imagesensor 995 is disposed on or near the image surface 990 of thephotographing optical lens assembly.

The detailed optical data of the 9th embodiment are shown in Table 17and the aspheric surface data are shown in Table 18 below.

TABLE 17 9th Embodiment f = 1.95 mm, Fno = 2.20, HFOV = 64.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −5.441 (ASP) 0.534 Plastic 1.545 56.1−2.50 2 1.880 (ASP) 0.713 3 Lens 2 2.893 (ASP) 0.985 Plastic 1.639 23.510.51 4 4.409 (ASP) 0.201 5 Ape. Stop Plano −0.061 6 Lens 3 2.306 (ASP)0.550 Plastic 1.545 56.1 3.07 7 −5.596 (ASP) −0.026 8 Stop Plano 0.147 9Lens 4 4.149 (ASP) 0.606 Plastic 1.544 56.0 3.02 10 −2.575 (ASP) 0.15211 Lens 5 −0.886 (ASP) 0.370 Plastic 1.639 23.5 −2.23 12 −2.720 (ASP)0.059 13 Lens 6 1.320 (ASP) 0.818 Plastic 1.544 56.0 3.03 14 5.205 (ASP)0.371 15 Lens 7 1.468 (ASP) 0.480 Plastic 1.587 28.3 −33.38 16 1.201(ASP) 0.700 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18 Plano0.163 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 901 (Surface 8) is 0.810 mm.

TABLE 18 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.9000E+01−1.2635E+00 −2.1483E+01 −4.2642E+01  −2.9867E+00 A4 =  8.3624E−02 1.9196E−01  9.0592E−02 1.4702E−02 −8.1002E−02 A6 = −4.5392E−02 1.8596E−03 −1.0330E−01 3.8947E−01  1.9148E−01 A8 =  1.6406E−02−1.1302E−01  8.0821E−02 −1.9593E+00  −2.9709E−01 A10 = −3.8365E−03 1.0877E−01 −1.2753E−02 6.6210E+00  2.5358E−01 A12 =  5.4922E−04−2.6519E−02 −2.4079E−02 −1.0808E+01  −5.7767E−02 A14 = −4.3437E−05−3.0844E−03  7.8978E−03 6.9253E+00 — A16 =  1.4593E−06 — — — — Surface #7 9 10 11 12 k = 1.5826E+01 −1.4062E+01 −4.5670E+00 −1.1654E+00−3.0746E+01 A4 = −4.9312E−01  −4.5275E−01  7.2910E−02  8.5927E−01−2.5718E−02 A6 = 7.9919E−01  5.8179E−01 −1.2530E+00 −3.1042E+00−3.6557E−01 A8 = −1.4726E+00  −1.4161E+00  2.9155E+00  7.0813E+00 1.3628E+00 A10 = 2.4657E+00  4.3186E+00 −4.7855E+00 −1.0394E+01−2.0616E+00 A12 = −2.6906E+00  −7.3766E+00  4.9445E+00  8.2589E+00 1.6768E+00 A14 = 1.3133E+00  5.8559E+00 −2.9331E+00 −2.8256E+00−7.4623E−01 A16 = — −1.6397E+00  8.2233E−01  1.9196E−01  1.6783E−01 A18= — — — — −1.4501E−02 Surface # 13 14 15 16 k = −6.2972E−01 −1.0759E+01−8.5363E−01 −1.0354E+00 A4 = −4.7048E−01 −1.4068E−01 −3.9544E−01−3.8378E−01 A6 =  6.0212E−01  1.6180E−01  1.3427E−01  2.6410E−01 A8 =−6.8800E−01 −1.5141E−01  6.1268E−02 −1.3694E−01 A10 =  5.9392E−01 1.1193E−01 −1.2145E−01  5.0114E−02 A12 = −3.6764E−01 −5.7009E−02 8.0899E−02 −1.2784E−02 A14 =  1.5349E−01  1.8322E−02 −2.9458E−02 2.2320E−03 A16 = −4.0473E−02 −3.5225E−03  6.0848E−03 −2.5547E−04 A18 = 6.0556E−03  3.6773E−04 −6.6422E−04  1.7306E−05 A20 = −3.9240E−04−1.5934E−05  2.9650E−05 −5.2452E−07

In the 9th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 9th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 17 and Table 18as the following values and satisfy the following conditions:

9th Embodiment f [mm] 1.95 ΣAT/(T12 + T67) 1.44 Fno 2.20 TL/ImgH 2.15HFOV [deg.] 64.0 Y11 [mm] 2.47 FOV [deg.] 128.0 Y72 [mm] 2.49 Nmax 1.639Y11/Y72 0.99 V1/N1 36.30 Y11/ImgH 0.76 V2/N2 14.34 Y72/f 1.27 V3/N336.30 Y72/BL 2.32 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.49 V5/N5 14.34(R11 + R12)/(R11 − R12) −1.68 V6/N6 36.26 |f1/f2| 0.24 V7/N7 17.83|f3/f2| 0.29 V2 + V5 + V7 75.28 |f4/f2| 0.29 V7 28.30 |f5/f2| 0.21T12/T23 5.09 |f6/f2| 0.29 CT2/BL 0.92 f6/f7 −0.09 Dr3r12/(T23 + 8.05 — —T34 + T45 + T56)

10th Embodiment

FIG. 19 is a schematic view of an image capturing unit according to the10th embodiment of the present disclosure. FIG. 20 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 10thembodiment. In FIG. 19, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1095. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 1010, a second lenselement 1020, an aperture stop 1000, a third lens element 1030, a stop1001, a fourth lens element 1040, a fifth lens element 1050, a stop1002, a sixth lens element 1060, a seventh lens element 1070, an IR-cutfilter 1080 and an image surface 1090. The photographing optical lensassembly includes seven lens elements (1010, 1020, 1030, 1040, 1050,1060 and 1070) with no additional lens element disposed between each ofthe adjacent seven lens elements.

The first lens element 1010 with negative refractive power has anobject-side surface 1011 being concave in a paraxial region thereof andan image-side surface 1012 being concave in a paraxial region thereof.The first lens element 1010 is made of plastic material and has theobject-side surface 1011 and the image-side surface 1012 being bothaspheric. The object-side surface 1011 of the first lens element 1010has at least one convex critical point in an off-axis region thereof.

The second lens element 1020 with positive refractive power has anobject-side surface 1021 being convex in a paraxial region thereof andan image-side surface 1022 being concave in a paraxial region thereof.The second lens element 1020 is made of plastic material and has theobject-side surface 1021 and the image-side surface 1022 being bothaspheric.

The third lens element 1030 with positive refractive power has anobject-side surface 1031 being convex in a paraxial region thereof andan image-side surface 1032 being convex in a paraxial region thereof.The third lens element 1030 is made of plastic material and has theobject-side surface 1031 and the image-side surface 1032 being bothaspheric.

The fourth lens element 1040 with positive refractive power has anobject-side surface 1041 being convex in a paraxial region thereof andan image-side surface 1042 being convex in a paraxial region thereof.The fourth lens element 1040 is made of plastic material and has theobject-side surface 1041 and the image-side surface 1042 being bothaspheric.

The fifth lens element 1050 with negative refractive power has anobject-side surface 1051 being concave in a paraxial region thereof andan image-side surface 1052 being convex in a paraxial region thereof.The fifth lens element 1050 is made of plastic material and has theobject-side surface 1051 and the image-side surface 1052 being bothaspheric. The image-side surface 1052 of the fifth lens element 1050 hasat least one inflection point and at least one critical point in anoff-axis region thereof.

The sixth lens element 1060 with positive refractive power has anobject-side surface 1061 being convex in a paraxial region thereof andan image-side surface 1062 being concave in a paraxial region thereof.The sixth lens element 1060 is made of plastic material and has theobject-side surface 1061 and the image-side surface 1062 being bothaspheric. The object-side surface 1061 of the sixth lens element 1060has at least one concave critical point in an off-axis region thereof.

The seventh lens element 1070 with negative refractive power has anobject-side surface 1071 being convex in a paraxial region thereof andan image-side surface 1072 being concave in a paraxial region thereof.The seventh lens element 1070 is made of plastic material and has theobject-side surface 1071 and the image-side surface 1072 being bothaspheric. The object-side surface 1071 of the seventh lens element 1070has at least one concave critical point in an off-axis region thereof.The image-side surface 1072 of the seventh lens element 1070 has atleast one convex critical point in an off-axis region thereof.

The IR-cut filter 1080 is made of glass material and located between theseventh lens element 1070 and the image surface 1090, and will notaffect the focal length of the photographing optical lens assembly. Theimage sensor 1095 is disposed on or near the image surface 1090 of thephotographing optical lens assembly.

The detailed optical data of the 10th embodiment are shown in Table 19and the aspheric surface data are shown in Table 20 below.

TABLE 19 10th Embodiment f = 1.95 mm, Fno = 2.20, HFOV = 64.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −13.357 (ASP) 0.502 Plastic 1.545 56.1−2.55 2 1.573 (ASP) 0.751 3 Lens 2 3.007 (ASP) 0.980 Plastic 1.639 23.59.64 4 5.132 (ASP) 0.212 5 Ape. Stop Plano −0.072 6 Lens 3 2.413 (ASP)0.521 Plastic 1.545 56.1 3.20 7 −5.808 (ASP) −0.027 8 Stop Plano 0.146 9Lens 4 4.337 (ASP) 0.595 Plastic 1.544 56.0 3.40 10 −3.063 (ASP) 0.15111 Lens 5 −1.058 (ASP) 0.360 Plastic 1.639 23.5 −2.23 12 −4.668 (ASP)−0.055 13 Stop Plano 0.128 14 Lens 6 1.351 (ASP) 0.920 Plastic 1.54456.0 2.69 15 13.315 (ASP) 0.295 16 Lens 7 1.404 (ASP) 0.486 Plastic1.587 28.3 −26.70 17 1.123 (ASP) 0.500 18 IR-cut filter Plano 0.210Glass 1.517 64.2 — 19 Plano 0.378 20 Image Plano 0.000 Note: Referencewavelength is 587.6 nm (d-line). An effective radius of the stop 1001(Surface 8) is 0.800 mm. An effective radius of the stop 1002 (Surface13) is 1.270 mm.

TABLE 20 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.9000E+01−1.0078E+00 −3.3868E+01  −6.3865E+01  −1.1595E+00 A4 =  8.6789E−02 1.2344E−01 1.1229E−01 1.8989E−02 −6.5753E−02 A6 = −4.7182E−02 5.3611E−02 −1.6928E−01  3.0338E−01  1.3657E−01 A8 =  1.7209E−02−1.3888E−01 1.5624E−01 −1.5786E+00  −8.6790E−02 A10 = −4.0863E−03 1.1071E−01 −7.6681E−02  5.4718E+00 −1.5796E−01 A12 =  6.0008E−04−2.9651E−02 7.5060E−03 −9.0729E+00   3.8718E−01 A14 = −4.9199E−05−4.4898E−04 2.5175E−03 5.9381E+00 — A16 =  1.7291E−06 — — — — Surface #7 9 10 11 12 k = −9.8026E+00 −1.0833E+01 −1.5935E+00 −7.7563E−01−9.7609E+01 A4 = −4.6961E−01 −4.2395E−01  7.4539E−02  6.4054E−01−1.0363E−01 A6 =  8.1527E−01  5.2576E−01 −1.4802E+00 −2.7269E+00−4.6676E−01 A8 = −1.8575E+00 −1.4089E+00  3.9705E+00  6.7918E+00 1.9445E+00 A10 =  3.7708E+00  4.4567E+00 −6.8477E+00 −9.7397E+00−3.0797E+00 A12 = −4.7207E+00 −7.9907E+00  6.8145E+00  6.3860E+00 2.6491E+00 A14 =  2.7281E+00  6.7641E+00 −3.7108E+00 −7.3278E−01−1.2944E+00 A16 = — −2.0086E+00  9.5255E−01 −5.9577E−01  3.4026E−01 A18= — — — — −3.7887E−02 Surface # 14 15 16 17 k = −6.6149E−01 −9.9000E+01−9.7608E−01 −1.0797E+00 A4 = −4.1965E−01 −7.0939E−02 −3.8196E−01−3.6303E−01 A6 =  4.1025E−01  3.0786E−02  1.3254E−01  2.0664E−01 A8 =−3.1892E−01 −7.2612E−02 −8.5337E−02 −9.1786E−02 A10 =  1.6674E−01 1.1281E−01  7.9607E−02  3.1152E−02 A12 = −4.7234E−02 −7.9905E−02−4.0244E−02 −7.7429E−03 A14 = −3.2811E−03  3.0152E−02  1.0356E−02 1.3328E−03 A16 =  7.5959E−03 −6.3483E−03 −1.3148E−03 −1.4895E−04 A18 =−2.2815E−03  7.0394E−04  6.6913E−05  9.7056E−06 A20 =  2.2692E−04−3.1962E−05 −2.5927E−07 −2.8002E−07

In the 10th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 10th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 19 and Table 20as the following values and satisfy the following conditions:

10th Embodiment f [mm] 1.95 ΣAT/(T12 + T67) 1.46 Fno 2.20 TL/ImgH 2.16HFOV [deg.] 64.0 Y11 [mm] 2.40 FOV [deg.] 128.0 Y72 [mm] 2.50 Nmax 1.639Y11/Y72 0.96 V1/N1 36.30 Y11/ImgH 0.74 V2/N2 14.34 Y72/f 1.29 V3/N336.30 Y72/BL 2.30 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.79 V5/N5 14.34(R11 + R12)/(R11 − R12) −1.23 V6/N6 36.26 |f1/f2| 0.26 V7/N7 17.83|f3/f2| 0.33 V2 + V5 + V7 75.28 |f4/f2| 0.35 V7 28.30 |f5/f2| 0.23T12/T23 5.36 |f6/f2| 0.28 CT2/BL 0.90 f6/f7 −0.10 Dr3r12/(T23 + 7.99 — —T34 + T45 + T56)

11th Embodiment

FIG. 21 is a schematic view of an image capturing unit according to the11th embodiment of the present disclosure. FIG. 22 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 11thembodiment. In FIG. 21, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1195. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 1110, a second lenselement 1120, an aperture stop 1100, a third lens element 1130, a fourthlens element 1140, a fifth lens element 1150, a sixth lens element 1160,a seventh lens element 1170, an IR-cut filter 1180 and an image surface1190. The photographing optical lens assembly includes seven lenselements (1110, 1120, 1130, 1140, 1150, 1160 and 1170) with noadditional lens element disposed between each of the adjacent seven lenselements.

The first lens element 1110 with negative refractive power has anobject-side surface 1111 being concave in a paraxial region thereof andan image-side surface 1112 being concave in a paraxial region thereof.The first lens element 1110 is made of plastic material and has theobject-side surface 1111 and the image-side surface 1112 being bothaspheric. The object-side surface 1111 of the first lens element 1110has at least one convex critical point in an off-axis region thereof.

The second lens element 1120 with positive refractive power has anobject-side surface 1121 being convex in a paraxial region thereof andan image-side surface 1122 being concave in a paraxial region thereof.The second lens element 1120 is made of plastic material and has theobject-side surface 1121 and the image-side surface 1122 being bothaspheric.

The third lens element 1130 with positive refractive power has anobject-side surface 1131 being convex in a paraxial region thereof andan image-side surface 1132 being convex in a paraxial region thereof.The third lens element 1130 is made of plastic material and has theobject-side surface 1131 and the image-side surface 1132 being bothaspheric.

The fourth lens element 1140 with positive refractive power has anobject-side surface 1141 being convex in a paraxial region thereof andan image-side surface 1142 being convex in a paraxial region thereof.The fourth lens element 1140 is made of plastic material and has theobject-side surface 1141 and the image-side surface 1142 being bothaspheric.

The fifth lens element 1150 with negative refractive power has anobject-side surface 1151 being convex in a paraxial region thereof andan image-side surface 1152 being concave in a paraxial region thereof.The fifth lens element 1150 is made of plastic material and has theobject-side surface 1151 and the image-side surface 1152 being bothaspheric. The image-side surface 1152 of the fifth lens element 1150 hasat least two inflection points and at least one critical point in anoff-axis region thereof.

The sixth lens element 1160 with positive refractive power has anobject-side surface 1161 being convex in a paraxial region thereof andan image-side surface 1162 being convex in a paraxial region thereof.The sixth lens element 1160 is made of plastic material and has theobject-side surface 1161 and the image-side surface 1162 being bothaspheric. The object-side surface 1161 of the sixth lens element 1160has at least one concave critical point in an off-axis region thereof.

The seventh lens element 1170 with negative refractive power has anobject-side surface 1171 being convex in a paraxial region thereof andan image-side surface 1172 being concave in a paraxial region thereof.The seventh lens element 1170 is made of plastic material and has theobject-side surface 1171 and the image-side surface 1172 being bothaspheric. The object-side surface 1171 of the seventh lens element 1170has at least one concave critical point in an off-axis region thereof.The image-side surface 1172 of the seventh lens element 1170 has atleast one convex critical point in an off-axis region thereof.

The IR-cut filter 1180 is made of glass material and located between theseventh lens element 1170 and the image surface 1190, and will notaffect the focal length of the photographing optical lens assembly. Theimage sensor 1195 is disposed on or near the image surface 1190 of thephotographing optical lens assembly.

The detailed optical data of the 11th embodiment are shown in Table 21and the aspheric surface data are shown in Table 22 below.

TABLE 21 11th Embodiment f = 1.46 mm, Fno = 2.05, HFOV = 71.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −3.659 (ASP) 0.839 Plastic 1.545 56.0−2.28 2 2.029 (ASP) 1.105 3 Lens 2 5.802 (ASP) 0.338 Plastic 1.614 26.028.75 4 8.453 (ASP) 0.376 5 Ape. Stop Plano −0.052 6 Lens 3 5.051 (ASP)0.420 Plastic 1.583 30.2 5.50 7 −8.502 (ASP) 0.035 8 Lens 4 4.089 (ASP)0.812 Plastic 1.544 55.9 3.27 9 −2.925 (ASP) 0.234 10 Lens 5 106.856(ASP) 0.250 Plastic 1.680 15.4 −5.25 11 3.453 (ASP) 0.077 12 Lens 62.212 (ASP) 1.187 Plastic 1.544 55.9 2.57 13 −3.089 (ASP) 0.359 14 Lens7 11.025 (ASP) 0.629 Plastic 1.705 14.0 −5.49 15 2.798 (ASP) 0.300 16IR-cut filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.295 18 ImagePlano 0.000 Note: Reference wavelength is 587.6 nm (d-line).

TABLE 22 Aspheric Coefficients Surface # 1 2 3 4 6 k = −5.1925E+01−9.7975E−01  0.0000E+00 −5.3609E+01 0.0000E+00 A4 =  5.8896E−02 2.5901E−01 −5.4667E−02  5.2127E−02 6.7300E−02 A6 = −2.2499E−02−2.1636E−01 −2.0663E−02 −4.6921E−02 2.0314E−01 A8 =  6.4423E−03 3.1943E−01  2.8239E−02  5.4993E−01 −7.6969E−01  A10 = −1.3152E−03−3.4825E−01  7.0456E−03 −2.0767E+00 −2.3692E+00  A12 =  1.8748E−04 2.1214E−01 −5.9735E−02  5.7052E+00 4.4514E+01 A14 = −1.8141E−05−3.3184E−02  1.3137E−01 −1.0234E+01 −2.1518E+02  A16 =  1.1341E−06−3.7506E−02 −1.3832E−01  1.1845E+01 5.1359E+02 A18 = −4.1240E−08 2.1261E−02  6.7596E−02 −8.0983E+00 −6.2065E+02  A20 =  6.6285E−10−3.3134E−03 −1.2495E−02  2.4307E+00 3.0343E+02 Surface # 7 8 9 10 11 k = 0.0000E+00 0.0000E+00 −2.0813E+01 −9.0000E+01 −1.0000E+00 A4 = 1.0042E−01 8.8713E−02 −1.7197E−01 −9.5498E−02 −1.9516E−01 A6 =−2.1881E−01 −2.5889E−01  −4.0333E−01 −7.8508E−01 −4.2248E−01 A8 = 6.7058E−01 6.8351E−01  2.0187E+00  2.5810E+00  1.8298E+00 A10 =−4.9528E−01 −1.1316E+00  −5.9254E+00 −6.5056E+00 −3.4708E+00 A12 =−2.6688E+00 9.5417E−01  1.1157E+01  1.0998E+01  3.9425E+00 A14 = 1.0869E+01 9.2045E−02 −1.3326E+01 −1.2711E+01 −2.8185E+00 A16 =−1.8518E+01 −9.6554E−01   9.8136E+00  9.7420E+00  1.2432E+00 A18 = 1.5457E+01 7.8609E−01 −4.0555E+00 −4.3110E+00 −3.0695E−01 A20 =−5.1442E+00 −2.1259E−01   7.1894E−01  8.1139E−01  3.2124E−02 Surface #12 13 14 15 k = −1.1106E+01 0.0000E+00  0.0000E+00  0.0000E+00 A4 =−1.6039E−01 −5.0779E−02  −1.4576E−01 −2.8146E−02 A6 = −1.0552E−01−1.0798E−01   7.1288E−02 −1.3565E−01 A8 =  5.7365E−01 8.1150E−02−5.8122E−01  1.2211E−01 A10 = −7.0281E−01 3.3697E−02  1.0387E+00−5.3620E−02 A12 =  3.6674E−01 −5.1416E−02  −8.7177E−01  1.4014E−02 A14 =−1.9724E−02 1.3135E−02  4.1192E−01 −2.2919E−03 A16 = −7.1382E−024.0087E−03 −1.1340E−01  2.3089E−04 A18 =  3.2177E−02 −2.5819E−03  1.7056E−02 −1.3139E−05 A20 = −4.4982E−03 3.6751E−04 −1.0842E−03 3.2349E−07

In the 11th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 11th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 21 and Table 22as the following values and satisfy the following conditions:

11th Embodiment f [mm] 1.46 ΣAT/(T12 + T67) 1.46 Fno 2.05 TL/ImgH 2.29HFOV [deg.] 71.0 Y11 [mm] 3.31 FOV [deg.] 142.0 Y72 [mm] 2.56 Nmax 1.705Y11/Y72 1.29 V1/N1 36.27 Y11/ImgH 1.02 V2/N2 16.09 Y72/f 1.75 V3/N319.11 Y72/BL 3.18 V4/N4 36.23 (R1 + R2)/(R1 − R2) 0.29 V5/N5 9.17 (R11 +R12)/(R11 − R12) −0.17 V6/N6 36.23 |f1/f2| 0.08 V7/N7 8.21 |f3/f2| 0.19V2 + V5 + V7 55.37 |f4/f2| 0.11 V7 14.00 |f5/f2| 0.18 T12/T23 3.41|f6/f2| 0.09 CT2/BL 0.42 f6/f7 −0.47 Dr3r12/(T23 + 5.49 — — T34 + T45 +T56)

12th Embodiment

FIG. 23 is a schematic view of an image capturing unit according to the12th embodiment of the present disclosure. FIG. 24 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 12thembodiment. In FIG. 23, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1295. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 1210, a second lenselement 1220, an aperture stop 1200, a third lens element 1230, a stop1201, a fourth lens element 1240, a fifth lens element 1250, a sixthlens element 1260, a seventh lens element 1270, an IR-cut filter 1280and an image surface 1290. The photographing optical lens assemblyincludes seven lens elements (1210, 1220, 1230, 1240, 1250, 1260 and1270) with no additional lens element disposed between each of theadjacent seven lens elements.

The first lens element 1210 with negative refractive power has anobject-side surface 1211 being concave in a paraxial region thereof andan image-side surface 1212 being concave in a paraxial region thereof.The first lens element 1210 is made of plastic material and has theobject-side surface 1211 and the image-side surface 1212 being bothaspheric. The object-side surface 1211 of the first lens element 1210has at least one convex critical point in an off-axis region thereof.

The second lens element 1220 with positive refractive power has anobject-side surface 1221 being convex in a paraxial region thereof andan image-side surface 1222 being convex in a paraxial region thereof.The second lens element 1220 is made of plastic material and has theobject-side surface 1221 and the image-side surface 1222 being bothaspheric.

The third lens element 1230 with positive refractive power has anobject-side surface 1231 being concave in a paraxial region thereof andan image-side surface 1232 being convex in a paraxial region thereof.The third lens element 1230 is made of plastic material and has theobject-side surface 1231 and the image-side surface 1232 being bothaspheric.

The fourth lens element 1240 with positive refractive power has anobject-side surface 1241 being convex in a paraxial region thereof andan image-side surface 1242 being convex in a paraxial region thereof.The fourth lens element 1240 is made of plastic material and has theobject-side surface 1241 and the image-side surface 1242 being bothaspheric.

The fifth lens element 1250 with negative refractive power has anobject-side surface 1251 being concave in a paraxial region thereof andan image-side surface 1252 being convex in a paraxial region thereof.The fifth lens element 1250 is made of plastic material and has theobject-side surface 1251 and the image-side surface 1252 being bothaspheric. The image-side surface 1252 of the fifth lens element 1250 hasat least one inflection point in an off-axis region thereof.

The sixth lens element 1260 with positive refractive power has anobject-side surface 1261 being convex in a paraxial region thereof andan image-side surface 1262 being convex in a paraxial region thereof.The sixth lens element 1260 is made of plastic material and has theobject-side surface 1261 and the image-side surface 1262 being bothaspheric. The object-side surface 1261 of the sixth lens element 1260has at least one concave critical point in an off-axis region thereof.

The seventh lens element 1270 with negative refractive power has anobject-side surface 1271 being convex in a paraxial region thereof andan image-side surface 1272 being concave in a paraxial region thereof.The seventh lens element 1270 is made of plastic material and has theobject-side surface 1271 and the image-side surface 1272 being bothaspheric. The object-side surface 1271 of the seventh lens element 1270has at least one concave critical point in an off-axis region thereof.The image-side surface 1272 of the seventh lens element 1270 has atleast one convex critical point in an off-axis region thereof.

The IR-cut filter 1280 is made of glass material and located between theseventh lens element 1270 and the image surface 1290, and will notaffect the focal length of the photographing optical lens assembly. Theimage sensor 1295 is disposed on or near the image surface 1290 of thephotographing optical lens assembly.

The detailed optical data of the 12th embodiment are shown in Table 23and the aspheric surface data are shown in Table 24 below.

TABLE 23 12th Embodiment f = 1.40 mm, Fno = 2.23, HFOV = 68.5 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −2.371 (ASP) 0.883 Plastic 1.545 56.0−2.20 2 2.728 (ASP) 0.962 3 Lens 2 4.630 (ASP) 0.761 Plastic 1.639 23.36.53 4 −39.481 (ASP) 0.094 5 Ape. Stop Plano 0.013 6 Lens 3 −66.068(ASP) 0.482 Plastic 1.549 50.1 3.74 7 −1.998 (ASP) −0.037 8 Stop Plano0.108 9 Lens 4 8.533 (ASP) 0.569 Plastic 1.544 56.0 4.51 10 −3.367 (ASP)0.223 11 Lens 5 −1.791 (ASP) 0.300 Plastic 1.698 16.3 −3.21 12 −9.598(ASP) 0.069 13 Lens 6 1.526 (ASP) 1.023 Plastic 1.544 56.0 2.61 14−15.845 (ASP) 0.275 15 Lens 7 4.285 (ASP) 0.489 Plastic 1.698 16.3−14.76 16 2.884 (ASP) 0.300 17 IR-cut filter Plano 0.210 Glass 1.51764.2 — 18 Plano 0.363 19 Image Plano 0.000 Note: Reference wavelength is587.6 nm (d-line). An effective radius of the image-side surface 1212(Surface 2) is 1.300 mm. An effective radius of the stop 1201 (Surface8) is 0.700 mm.

TABLE 24 Aspheric Coefficients Surface # 1 2 3 4 6 k = −2.9480E+01−1.8916E−01  0.0000E+00 9.0000E+01 0.0000E+00 A4 =  6.9773E−02 3.6577E−01 −4.5815E−02 1.0392E−01 8.9802E−02 A6 = −3.0688E−02−3.2297E−01 −7.0788E−02 −6.6686E−01  −2.6985E−01  A8 =  1.0756E−02 1.6873E−01  1.4613E−01 9.7906E+00 7.9047E+00 A10 = −2.7310E−03 5.4341E−01 −3.6273E−01 −8.5629E+01  −1.2600E+02  A12 =  4.8331E−04−1.3548E+00  5.6774E−01 4.8023E+02 1.1184E+03 A14 = −5.7653E−05 1.4381E+00 −5.4537E−01 −1.6977E+03  −5.8280E+03  A16 =  4.4058E−06−8.2134E−01  3.1859E−01 3.6638E+03 1.7816E+04 A18 = −1.9440E−07 2.4153E−01 −9.4581E−02 −4.3980E+03  −2.9581E+04  A20 =  3.7683E−09−2.8436E−02  8.0962E−03 2.2517E+03 2.0605E+04 Surface # 7 9 10 11 12 k =0.0000E+00  0.0000E+00 −4.3253E+01 2.7154E−01 −1.0000E+00 A4 =1.1496E−02  2.0535E−02 −6.3421E−03 5.5018E−01  1.4955E−01 A6 =−3.6642E−01  −2.6333E−02 −1.7412E+00 −3.0500E+00  −1.5509E+00 A8 =2.4589E+00 −1.0833E+00  9.5998E+00 9.1285E+00  4.8206E+00 A10 =−1.9179E+01   7.5383E+00 −3.5459E+01 −1.6989E+01  −8.3826E+00 A12 =1.1166E+02 −2.5770E+01  8.4390E+01 1.4784E+01  8.8921E+00 A14 =−4.1068E+02   5.2924E+01 −1.3037E+02 1.2545E+00 −5.8637E+00 A16 =9.0794E+02 −6.5030E+01  1.2708E+02 −1.3978E+01   2.3283E+00 A18 =−1.0976E+03   4.3712E+01 −7.1063E+01 1.0919E+01 −5.0023E−01 A20 =5.5744E+02 −1.2267E+01  1.7366E+01 −2.7405E+00   4.3628E−02 Surface # 1314 15 16 k = −7.4623E+00  0.0000E+00  0.0000E+00 0.0000E+00 A4 =−1.7630E−01 −2.2408E−01 −2.9782E−01 2.0802E−02 A6 =  7.7467E−02 5.2224E−01  4.8328E−01 −2.5969E−01  A8 = −1.9162E−02 −1.1364E+00−1.2261E+00 2.5151E−01 A10 =  1.6858E−01  1.3902E+00  1.6524E+00−1.2508E−01  A12 = −3.3232E−01 −9.7216E−01 −1.2266E+00 3.7291E−02 A14 = 2.8081E−01  4.0228E−01  5.3590E−01 −6.9345E−03  A16 = −1.2462E−01−9.7437E−02 −1.3849E−01 7.8914E−04 A18 =  2.8688E−02  1.2714E−02 1.9662E−02 −5.0370E−05  A20 = −2.7014E−03 −6.8434E−04 −1.1835E−031.3841E−06

In the 12th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 12th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 23 and Table 24as the following values and satisfy the following conditions:

12th Embodiment f [mm] 1.40 ΣAT/(T12 + T67) 1.38 Fno 2.23 TL/ImgH 2.19HFOV [deg.] 68.5 Y11 [mm] 3.09 FOV [deg.] 137.0 Y72 [mm] 2.43 Nmax 1.698Y11/Y72 1.27 V1/N1 36.27 Y11/ImgH 0.96 V2/N2 14.21 Y72/f 1.74 V3/N332.34 Y72/BL 2.79 V4/N4 36.26 (R1 + R2)/(R1 − R2) −0.07 V5/N5 9.60(R11 + R12)/(R11 − R12) −0.82 V6/N6 36.26 |f1/f2| 0.34 V7/N7 9.60|f3/f2| 0.57 V2 + V5 + V7 55.88 |f4/f2| 0.69 V7 16.30 |f5/f2| 0.49T12/T23 8.99 |f6/f2| 0.40 CT2/BL 0.87 f6/f7 −0.18 Dr3r12/(T23 + 7.67 — —T34 + T45 + T56)

13th Embodiment

FIG. 25 is a schematic view of an image capturing unit according to the13th embodiment of the present disclosure. FIG. 26 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 13thembodiment. In FIG. 25, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1395. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 1310, a second lenselement 1320, an aperture stop 1300, a third lens element 1330, a stop1301, a fourth lens element 1340, a fifth lens element 1350, a sixthlens element 1360, a seventh lens element 1370, an IR-cut filter 1380and an image surface 1390. The photographing optical lens assemblyincludes seven lens elements (1310, 1320, 1330, 1340, 1350, 1360 and1370) with no additional lens element disposed between each of theadjacent seven lens elements.

The first lens element 1310 with negative refractive power has anobject-side surface 1311 being concave in a paraxial region thereof andan image-side surface 1312 being concave in a paraxial region thereof.The first lens element 1310 is made of plastic material and has theobject-side surface 1311 and the image-side surface 1312 being bothaspheric. The object-side surface 1311 of the first lens element 1310has at least one convex critical point in an off-axis region thereof.

The second lens element 1320 with positive refractive power has anobject-side surface 1321 being convex in a paraxial region thereof andan image-side surface 1322 being concave in a paraxial region thereof.The second lens element 1320 is made of plastic material and has theobject-side surface 1321 and the image-side surface 1322 being bothaspheric.

The third lens element 1330 with positive refractive power has anobject-side surface 1331 being convex in a paraxial region thereof andan image-side surface 1332 being convex in a paraxial region thereof.The third lens element 1330 is made of plastic material and has theobject-side surface 1331 and the image-side surface 1332 being bothaspheric.

The fourth lens element 1340 with positive refractive power has anobject-side surface 1341 being convex in a paraxial region thereof andan image-side surface 1342 being convex in a paraxial region thereof.The fourth lens element 1340 is made of glass material and has theobject-side surface 1341 and the image-side surface 1342 being bothaspheric.

The fifth lens element 1350 with negative refractive power has anobject-side surface 1351 being concave in a paraxial region thereof andan image-side surface 1352 being concave in a paraxial region thereof.The fifth lens element 1350 is made of plastic material and has theobject-side surface 1351 and the image-side surface 1352 being bothaspheric. The image-side surface 1352 of the fifth lens element 1350 hasat least two inflection points and at least one critical point in anoff-axis region thereof.

The sixth lens element 1360 with positive refractive power has anobject-side surface 1361 being convex in a paraxial region thereof andan image-side surface 1362 being convex in a paraxial region thereof.The sixth lens element 1360 is made of plastic material and has theobject-side surface 1361 and the image-side surface 1362 being bothaspheric. The object-side surface 1361 of the sixth lens element 1360has at least one concave critical point in an off-axis region thereof.

The seventh lens element 1370 with negative refractive power has anobject-side surface 1371 being convex in a paraxial region thereof andan image-side surface 1372 being concave in a paraxial region thereof.The seventh lens element 1370 is made of plastic material and has theobject-side surface 1371 and the image-side surface 1372 being bothaspheric. The object-side surface 1371 of the seventh lens element 1370has at least one concave critical point in an off-axis region thereof.The image-side surface 1372 of the seventh lens element 1370 has atleast one convex critical point in an off-axis region thereof.

The IR-cut filter 1380 is made of glass material and located between theseventh lens element 1370 and the image surface 1390, and will notaffect the focal length of the photographing optical lens assembly. Theimage sensor 1395 is disposed on or near the image surface 1390 of thephotographing optical lens assembly.

The detailed optical data of the 13th embodiment are shown in Table 25and the aspheric surface data are shown in Table 26 below.

TABLE 25 13th Embodiment f = 1.46 mm, Fno = 2.21, HFOV = 71.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −3.310 (ASP) 0.910 Plastic 1.544 56.0−2.10 2 1.912 (ASP) 0.881 3 Lens 2 5.401 (ASP) 0.445 Plastic 1.626 22.816.11 4 11.261 (ASP) 0.269 5 Ape. Stop Plano −0.046 6 Lens 3 3.984 (ASP)0.426 Plastic 1.595 26.2 5.25 7 −13.910 (ASP) 0.031 8 Stop Plano 0.004 9Lens 4 3.749 (ASP) 0.754 Glass 1.543 62.9 3.08 10 −2.807 (ASP) 0.116 11Lens 5 −3.523 (ASP) 0.300 Plastic 1.698 16.3 −4.43 12 26.357 (ASP) 0.06813 Lens 6 1.945 (ASP) 1.099 Plastic 1.544 56.0 2.36 14 −3.038 (ASP)0.331 15 Lens 7 12.696 (ASP) 0.631 Plastic 1.705 14.0 −5.19 16 2.783(ASP) 0.300 17 IR-cut filter Plano 0.145 Glass 1.517 64.2 — 18 Plano0.441 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 1301 (Surface 8) is 0.760 mm.

TABLE 26 Aspheric Coefficients Surface # 1 2 3 4 6 k = −5.1775E+01−6.6273E−01 0.0000E+00 3.4084E+01 0.0000E+00 A4 =  5.0416E−02 3.3831E−01 −5.5116E−02  5.7233E−02 9.7099E−02 A6 = −1.6153E−02−6.1105E−01 2.1533E−03 1.4071E−01 5.1075E−02 A8 =  3.8119E−03 1.5650E+00 −3.2400E−02  −4.1981E−01  5.7239E−01 A10 = −6.1866E−04−2.6080E+00 7.8644E−02 1.4634E+00 −4.5519E+00  A12 =  6.6745E−05 2.6881E+00 −6.2269E−02  −2.0917E+00  1.7275E+01 A14 = −4.5115E−06−1.6549E+00 1.7083E−02 1.0582E+00 −3.2513E+01  A16 =  1.7162E−07 5.5110E−01 — — 2.3760E+01 A18 = −2.7353E−09 −7.5983E−02 — — — Surface #7 9 10 11 12 k =  0.0000E+00  0.0000E+00 −6.5845E+00 7.9498E+00−1.0000E+00 A4 = −1.1206E−01 −1.3130E−01  2.0045E−01 4.2284E−01 1.3559E−01 A6 =  6.2153E−01  8.9937E−01 −3.0986E+00 −3.4232E+00 −1.8286E+00 A8 = −1.9263E+00 −4.4225E+00  1.2554E+01 9.4606E+00 5.1826E+00 A10 =  5.2009E+00  1.8001E+01 −3.4802E+01 −1.5693E+01 −8.0940E+00 A12 = −8.6350E+00 −5.1345E+01  6.4826E+01 1.1481E+01 7.4498E+00 A14 =  7.8805E+00  9.7253E+01 −7.9567E+01 3.3722E+00−3.9143E+00 A16 = −3.1875E+00 −1.1639E+02  6.2393E+01 −1.1954E+01  9.8556E−01 A18 = —  7.9458E+01 −2.8440E+01 7.8007E+00 −1.5141E−02 A20 =— −2.3660E+01  5.6690E+00 −1.7352E+00  −3.0219E−02 Surface # 13 14 15 16k = −7.8300E+00  0.0000E+00  0.0000E+00  0.0000E+00 A4 = −8.3617E−02−1.7368E−02 −1.2607E−01 −2.5766E−02 A6 = −4.5642E−01  8.7744E−02 1.2158E−01 −1.2153E−01 A8 =  1.3548E+00 −4.3298E−01 −5.3813E−01 1.0389E−01 A10 = −1.7896E+00  6.3660E−01  7.1396E−01 −4.3975E−02 A12 = 1.3724E+00 −4.2936E−01 −4.3449E−01  1.1069E−02 A14 = −6.6401E−01 1.3795E−01  1.2834E−01 −1.7307E−03 A16 =  2.0562E−01 −1.4675E−02−1.4273E−02  1.6451E−04 A18 = −3.8024E−02 −2.0768E−03 −8.6197E−04−8.6634E−06 A20 =  3.2159E−03  4.4779E−04  2.2992E−04  1.9212E−07

In the 13th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 13th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 25 and Table 26as the following values and satisfy the following conditions:

13th Embodiment f [mm] 1.46 ΣAT/(T12 + T67) 1.36 Fno 2.21 TL/ImgH 2.19HFOV [deg.] 71.0 Y11 [mm] 3.16 FOV [deg.] 142.0 Y72 [mm] 2.48 Nmax 1.705Y11/Y72 1.27 V1/N1 36.26 Y11/ImgH 0.98 V2/N2 14.02 Y72/f 1.70 V3/N316.43 Y72/BL 2.80 V4/N4 40.78 (R1 + R2)/(R1 − R2) 0.27 V5/N5 9.60 (R11 +R12)/(R11 − R12) −0.22 V6/N6 36.26 |f1/f2| 0.13 V7/N7 8.21 |f3/f2| 0.33V2 + V5 + V7 53.10 |f4/f2| 0.19 V7 14.00 |f5/f2| 0.28 T12/T23 3.95|f6/f2| 0.15 CT2/BL 0.50 f6/f7 −0.46 Dr3r12/(T23 + 7.84 — — T34 + T45 +T56)

14th Embodiment

FIG. 27 is a schematic view of an image capturing unit according to the14th embodiment of the present disclosure. FIG. 28 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 14thembodiment. In FIG. 27, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1495. The photographingoptical lens assembly includes, in order from an object side to an imageside along an optical path, a first lens element 1410, a second lenselement 1420, an aperture stop 1400, a third lens element 1430, a stop1401, a fourth lens element 1440, a fifth lens element 1450, a sixthlens element 1460, a seventh lens element 1470, an IR-cut filter 1480and an image surface 1490. The photographing optical lens assemblyincludes seven lens elements (1410, 1420, 1430, 1440, 1450, 1460 and1470) with no additional lens element disposed between each of theadjacent seven lens elements.

The first lens element 1410 with negative refractive power has anobject-side surface 1411 being concave in a paraxial region thereof andan image-side surface 1412 being concave in a paraxial region thereof.The first lens element 1410 is made of plastic material and has theobject-side surface 1411 and the image-side surface 1412 being bothaspheric. The object-side surface 1411 of the first lens element 1410has at least one convex critical point in an off-axis region thereof.

The second lens element 1420 with positive refractive power has anobject-side surface 1421 being convex in a paraxial region thereof andan image-side surface 1422 being concave in a paraxial region thereof.The second lens element 1420 is made of plastic material and has theobject-side surface 1421 and the image-side surface 1422 being bothaspheric.

The third lens element 1430 with positive refractive power has anobject-side surface 1431 being convex in a paraxial region thereof andan image-side surface 1432 being convex in a paraxial region thereof.The third lens element 1430 is made of plastic material and has theobject-side surface 1431 and the image-side surface 1432 being bothaspheric.

The fourth lens element 1440 with positive refractive power has anobject-side surface 1441 being convex in a paraxial region thereof andan image-side surface 1442 being convex in a paraxial region thereof.The fourth lens element 1440 is made of plastic material and has theobject-side surface 1441 and the image-side surface 1442 being bothaspheric.

The fifth lens element 1450 with negative refractive power has anobject-side surface 1451 being concave in a paraxial region thereof andan image-side surface 1452 being convex in a paraxial region thereof.The fifth lens element 1450 is made of plastic material and has theobject-side surface 1451 and the image-side surface 1452 being bothaspheric. The image-side surface 1452 of the fifth lens element 1450 hasat least one inflection point and at least one critical point in anoff-axis region thereof.

The sixth lens element 1460 with positive refractive power has anobject-side surface 1461 being convex in a paraxial region thereof andan image-side surface 1462 being convex in a paraxial region thereof.The sixth lens element 1460 is made of plastic material and has theobject-side surface 1461 and the image-side surface 1462 being bothaspheric. The object-side surface 1461 of the sixth lens element 1460has at least one concave critical point in an off-axis region thereof.

The seventh lens element 1470 with negative refractive power has anobject-side surface 1471 being convex in a paraxial region thereof andan image-side surface 1472 being concave in a paraxial region thereof.The seventh lens element 1470 is made of plastic material and has theobject-side surface 1471 and the image-side surface 1472 being bothaspheric. The object-side surface 1471 of the seventh lens element 1470has at least one concave critical point in an off-axis region thereof.The image-side surface 1472 of the seventh lens element 1470 has atleast one convex critical point in an off-axis region thereof.

The IR-cut filter 1480 is made of glass material and located between theseventh lens element 1470 and the image surface 1490, and will notaffect the focal length of the photographing optical lens assembly. Theimage sensor 1495 is disposed on or near the image surface 1490 of thephotographing optical lens assembly.

The detailed optical data of the 14th embodiment are shown in Table 27and the aspheric surface data are shown in Table 28 below.

TABLE 27 14th Embodiment f = 1.95 mm, Fno = 2.23, HFOV = 64.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −4.887 (ASP) 0.519 Plastic 1.545 56.1−2.61 2 2.078 (ASP) 0.726 3 Lens 2 2.946 (ASP) 0.980 Plastic 1.639 23.513.56 4 3.886 (ASP) 0.236 5 Ape. Stop Plano −0.086 6 Lens 3 1.940 (ASP)0.537 Plastic 1.545 55.5 2.71 7 −5.567 (ASP) −0.028 8 Stop Plano 0.179 9Lens 4 4.792 (ASP) 0.580 Plastic 1.544 56.0 3.68 10 −3.296 (ASP) 0.18511 Lens 5 −0.769 (ASP) 0.365 Plastic 1.639 23.5 −2.66 12 −1.667 (ASP)0.030 13 Lens 6 1.686 (ASP) 0.889 Plastic 1.544 56.0 2.41 14 −4.771(ASP) 0.082 15 Lens 7 2.477 (ASP) 0.475 Plastic 1.587 28.3 −5.46 161.299 (ASP) 0.650 17 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 18Plano 0.442 19 Image Plano 0.000 Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 1401 (Surface 8) is 0.820 mm.

TABLE 28 Aspheric Coefficients Surface # 1 2 3 4 6 k = −9.9000E+01−3.1888E−02 −4.9202E+01 −5.5141E+01  −2.6389E+00 A4 =  8.3335E−02 2.0528E−01  1.7075E−01 1.5052E−02 −1.0058E−01 A6 = −4.1510E−02−1.3104E−01 −3.2453E−01 2.2447E−01  3.4744E−01 A8 =  1.3671E−02 1.7228E−01  3.7561E−01 −1.2688E+00  −1.0243E+00 A10 = −2.9303E−03−2.4699E−01 −2.5917E−01 4.2842E+00  1.8691E+00 A12 =  3.9011E−04 2.1443E−01  8.5938E−02 −6.8748E+00  −1.8332E+00 A14 = −2.9059E−05−9.0813E−02 −8.1746E−03 4.4734E+00  9.3823E−01 A16 =  9.3004E−07 1.4286E−02 −1.1937E−03 — — Surface # 7 9 10 11 12 k = −5.6854E+00−4.0889E+01 −6.4494E−03 −1.2932E+00 −1.1794E+01 A4 = −3.6142E−01−3.6685E−01 −5.3233E−02  8.9851E−01 −8.1982E−03 A6 =  2.0660E−01 2.9219E−01 −3.7454E−02 −2.9676E+00  2.3609E−02 A8 =  1.2120E−01−1.8262E+00 −2.3189E+00  9.4512E+00 −2.5458E−01 A10 = −9.6818E−01 6.3926E+00  6.2656E+00 −3.0995E+01  1.2174E+00 A12 =  2.8644E+00−1.0012E+01 −7.2207E+00  7.3738E+01 −2.1909E+00 A14 = −4.1808E+00 7.2207E+00  3.6574E+00 −1.0986E+02  2.0131E+00 A16 =  2.5596E+00−1.8162E+00 −5.2860E−01  9.5539E+01 −1.0224E+00 A18 = — — — −4.3900E+01 2.7734E−01 A20 = — — —  8.1789E+00 −3.1860E−02 Surface # 13 14 15 16 k= −3.8118E−01 −3.7584E+01 −4.7372E−02 −8.6854E−01 A4 = −2.8212E−01 1.1064E−01 −1.6483E−01 −3.3483E−01 A6 =  2.4606E−01 −4.4657E−01−2.7708E−01  2.1305E−01 A8 = −1.9126E−01  6.7989E−01  5.4083E−01−1.0166E−01 A10 =  1.2160E−01 −5.4758E−01 −4.3393E−01  3.3753E−02 A12 =−6.2903E−02  2.6751E−01  1.9942E−01 −7.8864E−03 A14 =  2.2833E−02−8.2962E−02 −5.5795E−02  1.2827E−03 A16 = −5.1590E−03  1.6060E−02 9.2942E−03 −1.3885E−04 A18 =  6.4777E−04 −1.7788E−03 −8.3424E−04 8.9973E−06 A20 = −3.6087E−05  8.6417E−05  3.0327E−05 −2.6378E−07

In the 14th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the above embodimentswith corresponding values for the 14th embodiment, so an explanation inthis regard will not be provided again.

Moreover, these parameters can be calculated from Table 27 and Table 28as the following values and satisfy the following conditions:

14th Embodiment f [mm] 1.95 ΣAT/(T12 + T67) 1.64 Fno 2.23 TL/ImgH 2.15HFOV [deg.] 64.0 Y11 [mm] 2.44 FOV [deg.] 128.0 Y72 [mm] 2.48 Nmax 1.639Y11/Y72 0.99 V1/N1 36.30 Y11/ImgH 0.75 V2/N2 14.34 Y72/f 1.27 V3/N335.89 Y72/BL 1.90 V4/N4 36.26 (R1 + R2)/(R1 − R2) 0.40 V5/N5 14.34(R11 + R12)/(R11 − R12) −0.48 V6/N6 36.26 |f1/f2| 0.19 V7/N7 17.83|f3/f2| 0.20 V2 + V5 + V7 75.28 |f4/f2| 0.27 V7 28.30 |f5/f2| 0.20T12/T23 4.84 |f6/f2| 0.18 CT2/BL 0.75 f6/f7 −0.44 Dr3r12/(T23 + 7.49 — —T34 + T45 + T56)

15th Embodiment

FIG. 29 is a perspective view of an image capturing unit according tothe 15th embodiment of the present disclosure. In this embodiment, animage capturing unit 10 is a camera module including a lens unit 11, adriving device 12, an image sensor 13 and an image stabilizer 14. Thelens unit 11 includes the photographing optical lens assembly disclosedin the 13th embodiment, a barrel and a holder member (their referencenumerals are omitted) for holding the photographing optical lensassembly; the lens unit 11 may include the photographing optical lensassembly disclosed in other embodiments, and the present disclosure isnot limited thereto. The imaging light converges in the lens unit 11 ofthe image capturing unit 10 to generate an image with the driving device12 utilized for image focusing on the image sensor 13, and the generatedimage is then digitally transmitted to other electronic component forfurther processing.

The driving device 12 can have auto focusing functionality, anddifferent driving configurations can be obtained through the usages ofvoice coil motors (VCM), micro electro-mechanical systems (MEMS),piezoelectric systems, or shape memory alloy materials. The drivingdevice 12 is favorable for obtaining a better imaging position of thelens unit 11, so that a clear image of the imaged object can be capturedby the lens unit 11 with different object distances. The image sensor 13(for example, CCD or CMOS), which can feature high photosensitivity andlow noise, is disposed on the image surface of the photographing opticallens assembly to provide higher image quality.

The image stabilizer 14, such as an accelerometer, a gyro sensor and aHall Effect sensor, is configured to work with the driving device 12 toprovide optical image stabilization (OIS). The driving device 12 workingwith the image stabilizer 14 is favorable for compensating for pan andtilt of the lens unit 11 to reduce blurring associated with motionduring exposure. In some cases, the compensation can be provided byelectronic image stabilization (EIS) with image processing software,thereby improving image quality while in motion or low-light conditions.

16th Embodiment

FIG. 30 is one perspective view of an electronic device according to the16th embodiment of the present disclosure. FIG. 31 is anotherperspective view of the electronic device in FIG. 30. FIG. 32 is a blockdiagram of the electronic device in FIG. 30.

In this embodiment, an electronic device 20 is a smartphone includingthe image capturing unit 10 disclosed in the 15th embodiment, an imagecapturing unit 10 a, a flash module 21, a focus assist module 22, animage signal processor 23, a user interface 24 and an image softwareprocessor 25. The image capturing unit 10 and the image capturing unit10 a face the same direction, and each of the image capturing units 10and 10 a has a single focal point. Furthermore, the image capturing unit10 a has a configuration similar to that of the image capturing unit 10.In detail, the image capturing unit 10 a includes a lens unit, a drivingdevice, an image sensor and an image stabilizer, and the lens unitincludes a lens system assembly, a barrel and a holder member forholding the lens system assembly.

In this embodiment, the image capturing units 10 and 10 a have differentfields of view. Specifically, the image capturing unit 10 is awide-angle image capturing unit, the image capturing unit 10 a is astandard image capturing unit, and maximum fields of view of the imagecapturing units 10 and 10 a can differ by at least 30 degrees. Moreover,the maximum fields of view of the image capturing units 10 and 10 a canalso differ by at least 50 degrees. As such, the electronic device 20has various magnification ratios so as to meet the requirement ofoptical zoom functionality. In this embodiment, the electronic device 20includes multiple image capturing units 10 and 10 a, but the presentdisclosure is not limited to the number and arrangement of imagecapturing units.

When a user captures images of an object 26, the light rays converge inthe image capturing unit 10 or the image capturing unit 10 a to generatean image(s), and the flash module 21 is activated for light supplement.The focus assist module 22 detects the object distance of the imagedobject 26 to achieve fast auto focusing. The image signal processor 23is configured to optimize the captured image to improve image quality.The light beam emitted from the focus assist module 22 can be eitherconventional infrared or laser. The user interface 24 can be a touchscreen or a physical button. The user is able to interact with the userinterface 24 and the image software processor 25 having multiplefunctions to capture images and complete image processing. The imageprocessed by the image software processor 25 can be displayed on theuser interface 24.

The smartphone in this embodiment is only exemplary for showing theimage capturing unit 10 of the present disclosure installed in anelectronic device, and the present disclosure is not limited thereto.The image capturing unit 10 can be optionally applied to optical systemswith a movable focus. Furthermore, the photographing optical lensassembly of the image capturing unit 10 features good capability inaberration corrections and high image quality, and can be applied to 3D(three-dimensional) image capturing applications, in products such asdigital cameras, mobile devices, digital tablets, smart televisions,network surveillance devices, dashboard cameras, vehicle backup cameras,multi-camera devices, image recognition systems, motion sensing inputdevices, wearable devices and other electronic imaging devices.

The foregoing description, for the purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTABLES 1-28 show different data of the different embodiments; however,the data of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. A photographing optical lens assembly comprisingseven lens elements, the seven lens elements being, in order from anobject side to an image side along an optical path, a first lenselement, a second lens element, a third lens element, a fourth lenselement, a fifth lens element, a sixth lens element and a seventh lenselement; wherein the first lens element has negative refractive power,the third lens element with positive refractive power has an image-sidesurface being convex in a paraxial region thereof, the fifth lenselement has an object-side surface being concave in a paraxial regionthereof, the sixth lens element has an object-side surface being convexin a paraxial region thereof, the seventh lens element has an image-sidesurface being concave in a paraxial region thereof, and the image-sidesurface of the seventh lens element has at least one convex criticalpoint in an off-axis region thereof; wherein a sum of axial distancesbetween each of all adjacent lens elements of the photographing opticallens assembly is ΣAT, an axial distance between the first lens elementand the second lens element is T12, an axial distance between the secondlens element and the third lens element is T23, an axial distancebetween the sixth lens element and the seventh lens element is T67, amaximum effective radius of an object-side surface of the first lenselement is Y11, a maximum image height of the photographing optical lensassembly is ImgH, an axial distance between the object-side surface ofthe first lens element and an image surface is TL, and the followingconditions are satisfied:1.0<ΣAT/(T12+T67)<3.75;Y11/ImgH<1.40;TL/ImgH<3.0; and1.50<T12/T23.
 2. The photographing optical lens assembly of claim 1,wherein the object-side surface of the sixth lens element has at leastone concave critical point in an off-axis region thereof.
 3. Thephotographing optical lens assembly of claim 1, wherein the sum of axialdistances between each of all adjacent lens elements of thephotographing optical lens assembly is ΣAT, the axial distance betweenthe first lens element and the second lens element is T12, the axialdistance between the sixth lens element and the seventh lens element isT67, and the following condition is satisfied:1.0<ΣAT/(T12+T67)<2.0.
 4. The photographing optical lens assembly ofclaim 1, wherein the seventh lens element has an object-side surfacebeing convex in a paraxial region thereof.
 5. The photographing opticallens assembly of claim 1, wherein the maximum effective radius of theobject-side surface of the first lens element is Y11, the maximum imageheight of the photographing optical lens assembly is ImgH, and thefollowing condition is satisfied:0.50<Y11/ImgH<1.25.
 6. The photographing optical lens assembly of claim1, wherein the object-side surface of the first lens element is concavein a paraxial region thereof, the object-side surface of the first lenselement has at least one convex critical point in an off-axis regionthereof, a curvature radius of the object-side surface of the first lenselement is R1, a curvature radius of an image-side surface of the firstlens element is R2, and the following condition is satisfied:−1.50<(R1+R2)/(R1−R2)<0.75.
 7. The photographing optical lens assemblyof claim 1, wherein a focal length of the first lens element is f1, afocal length of the second lens element is f2, a focal length of thethird lens element is f3, a focal length of the fourth lens element isf4, a focal length of the fifth lens element is f5, a focal length ofthe sixth lens element is f6, and the following conditions aresatisfied:|f1/f2|<1.0;|f3/f2|<1.0;|f4/f2|<1.0;|f5/f2|<1.0; and|f6/f2|<1.0.
 8. The photographing optical lens assembly of claim 1,wherein an axial distance between an object-side surface of the secondlens element and an image-side surface of the sixth lens element isDr3r12, the axial distance between the second lens element and the thirdlens element is T23, an axial distance between the third lens elementand the fourth lens element is T34, an axial distance between the fourthlens element and the fifth lens element is T45, an axial distancebetween the fifth lens element and the sixth lens element is T56, andthe following condition is satisfied:4.0<Dr3r12/(T23+T34+T45+T56).
 9. The photographing optical lens assemblyof claim 1, wherein an f-number of the photographing optical lensassembly is Fno, the axial distance between the object-side surface ofthe first lens element and the image surface is TL, the maximum imageheight of the photographing optical lens assembly is ImgH, a maximumfield of view of the photographing optical lens assembly is FOV, and thefollowing conditions are satisfied:1.20<Fno<2.60;0.80<TL/ImgH<2.40; and100 [deg.]<FOV<160 [deg.].
 10. The photographing optical lens assemblyof claim 1, wherein an Abbe number of the second lens element is V2, anAbbe number of the fifth lens element is V5, an Abbe number of theseventh lens element is V7, a maximum value among refractive indices ofall lens elements of the photographing optical lens assembly is Nmax,and the following conditions are satisfied:30<V2+V5+V7<85; andNmax≤1.73.
 11. The photographing optical lens assembly of claim 1,wherein the fifth lens element has an image-side surface having at leastone critical point in an off-axis region thereof.
 12. The photographingoptical lens assembly of claim 1, wherein an Abbe number of the seventhlens element is V7, and the following condition is satisfied:V7<30.
 13. The photographing optical lens assembly of claim 1, wherein amaximum effective radius of the image-side surface of the seventh lenselement is Y72, a focal length of the photographing optical lensassembly is f, and the following condition is satisfied:1.0<Y72/f<2.0.
 14. The photographing optical lens assembly of claim 1,wherein a central thickness of the second lens element is CT2, an axialdistance between the image-side surface of the seventh lens element andthe image surface is BL, and the following condition is satisfied:0.50<CT2/BL<1.50.
 15. An image capturing unit, comprising: thephotographing optical lens assembly of claim 1; and an image sensordisposed on the image surface of the photographing optical lensassembly.
 16. An electronic device, comprising: the image capturing unitof claim
 15. 17. An electronic device, comprising at least two imagecapturing units, wherein the at least two image capturing units face asame direction, the at least two image capturing units comprises theimage capturing unit of claim 15, and maximum fields of view of the atleast two image capturing units differ by at least 30 degrees.
 18. Aphotographing optical lens assembly comprising seven lens elements, theseven lens elements being, in order from an object side to an image sidealong an optical path, a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element; wherein the first lens elementhas negative refractive power, the third lens element with positiverefractive power has an image-side surface being convex in a paraxialregion thereof, the fifth lens element with negative refractive powerhas an object-side surface being concave in a paraxial region thereof,the sixth lens element has positive refractive power, the seventh lenselement has an image-side surface being concave in a paraxial regionthereof, and the image-side surface of the seventh lens element has atleast one convex critical point in an off-axis region thereof; wherein asum of axial distances between each of all adjacent lens elements of thephotographing optical lens assembly is ΣAT, an axial distance betweenthe first lens element and the second lens element is T12, an axialdistance between the sixth lens element and the seventh lens element isT67, a maximum effective radius of an object-side surface of the firstlens element is Y11, a maximum image height of the photographing opticallens assembly is ImgH, an axial distance between the object-side surfaceof the first lens element and an image surface is TL, and the followingconditions are satisfied:1.0<ΣAT/(T12+T67)<1.80;Y11/ImgH<1.40; andTL/ImgH<3.0.
 19. The photographing optical lens assembly of claim 18,wherein an Abbe number of the first lens element is V1, an Abbe numberof the second lens element is V2, an Abbe number of the third lenselement is V3, an Abbe number of the fourth lens element is V4, an Abbenumber of the fifth lens element is V5, an Abbe number of the sixth lenselement is V6, an Abbe number of the seventh lens element is V7, an Abbenumber of the i-th lens element is Vi, a refractive index of the firstlens element is N1, a refractive index of the second lens element is N2,a refractive index of the third lens element is N3, a refractive indexof the fourth lens element is N4, a refractive index of the fifth lenselement is N5, a refractive index of the sixth lens element is N6, arefractive index of the seventh lens element is N7, a refractive indexof the i-th lens element is Ni, at least two lens elements of thephotographing optical lens assembly satisfy the following condition:5.0<Vi/Ni<12.0, wherein i=1, 2, 3, 4, 5, 6 or
 7. 20. The photographingoptical lens assembly of claim 18, wherein a maximum effective radius ofthe image-side surface of the seventh lens element is Y72, an axialdistance between the image-side surface of the seventh lens element andthe image surface is BL, and the following condition is satisfied:1.5<Y72/BL<5.0.
 21. The photographing optical lens assembly of claim 18,wherein the sum of axial distances between each of all adjacent lenselements of the photographing optical lens assembly is ΣAT, the axialdistance between the first lens element and the second lens element isT12, the axial distance between the sixth lens element and the seventhlens element is T67, and the following condition is satisfied:1.0<ΣAT/(T12+T67)<1.60.
 22. The photographing optical lens assembly ofclaim 18, wherein a focal length of the first lens element is f1, afocal length of the second lens element is f2, a focal length of thethird lens element is f3, a focal length of the fourth lens element isf4, a focal length of the fifth lens element is f5, a focal length ofthe sixth lens element is f6, and the following conditions aresatisfied:|f1/f2|<1.0;|f3/f2|<1.0;|f4/f2|<1.0;|f5/f2|<1.0; and|f6/f2|<1.0.
 23. The photographing optical lens assembly of claim 18,wherein the maximum effective radius of the object-side surface of thefirst lens element is Y11, a maximum effective radius of the image-sidesurface of the seventh lens element is Y72, and the following conditionis satisfied:0.50<Y11/Y72<1.30.
 24. The photographing optical lens assembly of claim18, wherein an Abbe number of the second lens element is V2, an Abbenumber of the fifth lens element is V5, an Abbe number of the seventhlens element is V7, a maximum value among refractive indices of all lenselements of the photographing optical lens assembly is Nmax, and thefollowing conditions are satisfied:30<V2+V5+V7<85; andNmax≤1.73.
 25. The photographing optical lens assembly of claim 18,wherein a focal length of the sixth lens element is f6, a focal lengthof the seventh lens element is f7, and the following condition issatisfied:f6/f7<0.30.
 26. A photographing optical lens assembly comprising sevenlens elements, the seven lens elements being, in order from an objectside to an image side along an optical path, a first lens element, asecond lens element, a third lens element, a fourth lens element, afifth lens element, a sixth lens element and a seventh lens element;wherein the first lens element has negative refractive power, the thirdlens element with positive refractive power has an object-side surfacebeing convex in a paraxial region thereof and an image-side surfacebeing convex in a paraxial region thereof, the fifth lens element hasnegative refractive power, the sixth lens element has positiverefractive power, the seventh lens element has an image-side surfacebeing concave in a paraxial region thereof, and the image-side surfaceof the seventh lens element has at least one convex critical point in anoff-axis region thereof; wherein a sum of axial distances between eachof all adjacent lens elements of the photographing optical lens assemblyis ΣAT, an axial distance between the first lens element and the secondlens element is T12, an axial distance between the sixth lens elementand the seventh lens element is T67, a maximum effective radius of anobject-side surface of the first lens element is Y11, a maximum imageheight of the photographing optical lens assembly is ImgH, an axialdistance between the object-side surface of the first lens element andan image surface is TL, a curvature radius of an object-side surface ofthe sixth lens element is R11, a curvature radius of an image-sidesurface of the sixth lens element is R12, and the following conditionsare satisfied:1.0<ΣAT/(T12+T67)<1.80;Y11/ImgH<1.40;TL/ImgH<3.0; and(R11+R12)/(R11−R12)<0.
 27. The photographing optical lens assembly ofclaim 26, wherein the curvature radius of the object-side surface of thesixth lens element is R11, the curvature radius of the image-sidesurface of the sixth lens element is R12, and the following condition issatisfied:−2.0<(R11+R12)/(R11−R12)<0.
 28. The photographing optical lens assemblyof claim 26, wherein a central thickness of the second lens element isCT2, an axial distance between the image-side surface of the seventhlens element and the image surface is BL, and the following condition issatisfied:0.50<CT2/BL<1.50.
 29. The photographing optical lens assembly of claim26, wherein the object-side surface of the first lens element is concavein a paraxial region thereof, the object-side surface of the first lenselement has at least one convex critical point in an off-axis regionthereof, a curvature radius of the object-side surface of the first lenselement is R1, a curvature radius of an image-side surface of the firstlens element is R2, and the following condition is satisfied:−1.50<(R1+R2)/(R1−R2)<0.75.
 30. The photographing optical lens assemblyof claim 26, wherein the object-side surface of the sixth lens elementhas at least one concave critical point in an off-axis region thereof.31. The photographing optical lens assembly of claim 26, wherein an Abbenumber of the second lens element is V2, an Abbe number of the fifthlens element is V5, an Abbe number of the seventh lens element is V7, amaximum value among refractive indices of all lens elements of thephotographing optical lens assembly is Nmax, and the followingconditions are satisfied:30<V2+V5+V7<85; andNmax≤1.73.
 32. An image capturing unit, comprising: the photographingoptical lens assembly of claim 26; and an image sensor disposed on theimage surface of the photographing optical lens assembly.
 33. Anelectronic device, comprising: the image capturing unit of claim 32.